diff --git a/assignment-client/src/Agent.cpp b/assignment-client/src/Agent.cpp
index cd1bd9e2c2..4490474599 100644
--- a/assignment-client/src/Agent.cpp
+++ b/assignment-client/src/Agent.cpp
@@ -222,7 +222,8 @@ void Agent::requestScript() {
         return;
     }
 
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(this, scriptURL);
+    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        this, scriptURL, true, -1, "Agent::requestScript");
 
     if (!request) {
         qWarning() << "Could not create ResourceRequest for Agent script at" << scriptURL.toString();
diff --git a/assignment-client/src/Agent.h b/assignment-client/src/Agent.h
index 2b5ff51b49..7d47c8e713 100644
--- a/assignment-client/src/Agent.h
+++ b/assignment-client/src/Agent.h
@@ -21,7 +21,6 @@
 #include <QtCore/QTimer>
 #include <QUuid>
 
-#include <ClientTraitsHandler.h>
 #include <EntityEditPacketSender.h>
 #include <EntityTree.h>
 #include <ScriptEngine.h>
diff --git a/assignment-client/src/AssignmentClient.cpp b/assignment-client/src/AssignmentClient.cpp
index 426f3ce6fc..76ff5ab2ed 100644
--- a/assignment-client/src/AssignmentClient.cpp
+++ b/assignment-client/src/AssignmentClient.cpp
@@ -35,6 +35,7 @@
 
 #include "AssignmentClientLogging.h"
 #include "AssignmentFactory.h"
+#include "ResourceRequestObserver.h"
 
 const QString ASSIGNMENT_CLIENT_TARGET_NAME = "assignment-client";
 const long long ASSIGNMENT_REQUEST_INTERVAL_MSECS = 1 * 1000;
@@ -49,6 +50,7 @@ AssignmentClient::AssignmentClient(Assignment::Type requestAssignmentType, QStri
     DependencyManager::set<tracing::Tracer>();
     DependencyManager::set<StatTracker>();
     DependencyManager::set<AccountManager>();
+    DependencyManager::set<ResourceRequestObserver>();
 
     auto addressManager = DependencyManager::set<AddressManager>();
 
diff --git a/cmake/externals/serverless-content/CMakeLists.txt b/cmake/externals/serverless-content/CMakeLists.txt
index 12e2b7a4c6..8bb49f0973 100644
--- a/cmake/externals/serverless-content/CMakeLists.txt
+++ b/cmake/externals/serverless-content/CMakeLists.txt
@@ -4,8 +4,8 @@ set(EXTERNAL_NAME serverless-content)
 
 ExternalProject_Add(
   ${EXTERNAL_NAME}
-  URL http://cdn.highfidelity.com/content-sets/serverless-tutorial-RC73.zip
-  URL_MD5 0c5edfb63cafb042311d3cf25261fbf2
+  URL http://cdn.highfidelity.com/content-sets/serverless-tutorial-RC75.zip
+  URL_MD5 b4225d058952e17976ac228330ce8d51
   CONFIGURE_COMMAND ""
   BUILD_COMMAND ""
   INSTALL_COMMAND ""
diff --git a/interface/resources/avatar/network-animation.json b/interface/resources/avatar/network-animation.json
new file mode 100644
index 0000000000..0ba4ea465c
--- /dev/null
+++ b/interface/resources/avatar/network-animation.json
@@ -0,0 +1,140 @@
+{
+    "version": "1.1",
+    "root": {
+        "id": "userAnimStateMachine",
+        "type": "stateMachine",
+        "data": {
+            "currentState": "idleAnim",
+            "states": [
+                {
+                    "id": "idleAnim",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "postTransitAnim", "state": "postTransitAnim" },
+                        { "var": "preTransitAnim", "state": "preTransitAnim" }
+                    ]
+                },
+                {
+                    "id": "preTransitAnim",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "idleAnim", "state": "idleAnim" },
+                        { "var": "transitAnim", "state": "transitAnim" }
+                    ]
+                },
+                {
+                    "id": "transitAnim",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "preTransitAnim", "state": "preTransitAnim" },
+                        { "var": "postTransitAnim", "state": "postTransitAnim" }
+                    ]
+                },
+                {
+                    "id": "postTransitAnim",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "transitAnim", "state": "transitAnim" },
+                        { "var": "idleAnim", "state": "idleAnim" }
+                    ]
+                },
+                {
+                    "id": "userAnimA",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "idleAnim", "state": "idleAnim" },
+                        { "var": "userAnimB", "state": "userAnimB" }
+                    ]
+                },
+                {
+                    "id": "userAnimB",
+                    "interpTarget": 6,
+                    "interpDuration": 6,
+                    "transitions": [
+                        { "var": "idleAnim", "state": "idleAnim" },
+                        { "var": "userAnimA", "state": "userAnimA" }
+                    ]
+                }
+            ]
+        },
+        "children": [
+            {
+                "id": "idleAnim",
+                "type": "clip",
+                "data": {
+                    "url": "qrc:///avatar/animations/idle.fbx",
+                    "startFrame": 0.0,
+                    "endFrame": 90.0,
+                    "timeScale": 1.0,
+                    "loopFlag": true
+                },
+                "children": []
+            },
+            {
+                "id": "preTransitAnim",
+                "type": "clip",
+                "data": {
+                    "url": "https://hifi-content.s3.amazonaws.com/luis/test_scripts/transitApp/animations/teleport01_warp.fbx",
+                    "startFrame": 0.0,
+                    "endFrame": 10.0,
+                    "timeScale": 1.0,
+                    "loopFlag": false
+                },
+                "children": []
+            },
+            {
+                "id": "transitAnim",
+                "type": "clip",
+                "data": {
+                    "url": "https://hifi-content.s3.amazonaws.com/luis/test_scripts/transitApp/animations/teleport01_warp.fbx",
+                    "startFrame": 11.0,
+                    "endFrame": 11.0,
+                    "timeScale": 1.0,
+                    "loopFlag": true
+                },
+                "children": []
+            },
+            {
+                "id": "postTransitAnim",
+                "type": "clip",
+                "data": {
+                    "url": "https://hifi-content.s3.amazonaws.com/luis/test_scripts/transitApp/animations/teleport01_warp.fbx",
+                    "startFrame": 22.0,
+                    "endFrame": 49.0,
+                    "timeScale": 1.0,
+                    "loopFlag": false
+                },
+                "children": []
+            },
+            {
+                "id": "userAnimA",
+                "type": "clip",
+                "data": {
+                    "url": "qrc:///avatar/animations/idle.fbx",
+                    "startFrame": 0.0,
+                    "endFrame": 90.0,
+                    "timeScale": 1.0,
+                    "loopFlag": true
+                },
+                "children": []
+            },
+            {
+                "id": "userAnimB",
+                "type": "clip",
+                "data": {
+                    "url": "qrc:///avatar/animations/idle.fbx",
+                    "startFrame": 0.0,
+                    "endFrame": 90.0,
+                    "timeScale": 1.0,
+                    "loopFlag": true
+                },
+                "children": []
+            }
+        ]
+    }
+}
diff --git a/interface/resources/qml/+android/Stats.qml b/interface/resources/qml/+android/Stats.qml
index 0dcb07e730..e9a2aa47eb 100644
--- a/interface/resources/qml/+android/Stats.qml
+++ b/interface/resources/qml/+android/Stats.qml
@@ -10,6 +10,7 @@ Item {
     property int modality: Qt.NonModal
     implicitHeight: row.height
     implicitWidth: row.width
+    visible: false
 
     Component.onCompleted: {
         stats.parentChanged.connect(fill);
diff --git a/interface/resources/qml/hifi/avatarapp/Settings.qml b/interface/resources/qml/hifi/avatarapp/Settings.qml
index 71bfbb084d..3446191163 100644
--- a/interface/resources/qml/hifi/avatarapp/Settings.qml
+++ b/interface/resources/qml/hifi/avatarapp/Settings.qml
@@ -31,7 +31,7 @@ Rectangle {
 
         scaleSlider.notify = false;
         scaleSlider.value = Math.round(avatarScale * 10);
-        scaleSlider.notify = true;;
+        scaleSlider.notify = true;
 
         if (settings.dominantHand === 'left') {
             leftHandRadioButton.checked = true;
diff --git a/interface/resources/qml/hifi/commerce/marketplaceItemTester/ItemUnderTest.qml b/interface/resources/qml/hifi/commerce/marketplaceItemTester/ItemUnderTest.qml
new file mode 100644
index 0000000000..27277a28f4
--- /dev/null
+++ b/interface/resources/qml/hifi/commerce/marketplaceItemTester/ItemUnderTest.qml
@@ -0,0 +1,364 @@
+//
+//  ItemUnderTest
+//  qml/hifi/commerce/marketplaceItemTester
+//
+//  Load items not in the marketplace for testing purposes
+//
+//  Created by Kerry Ivan Kurian on 2018-10-18
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+import QtQuick 2.10
+import QtQuick.Controls 2.3
+import Hifi 1.0 as Hifi
+import "qrc:////qml//styles-uit" as HifiStylesUit
+import "qrc:////qml//controls-uit" as HifiControlsUit
+
+Rectangle {
+    id: root;
+    color: hifi.colors.baseGray
+    width: parent.width - 16
+    height: childrenRect.height + itemHeaderContainer.anchors.topMargin + detailsContainer.anchors.topMargin
+
+    property var detailsExpanded: false
+
+    property var actions: {
+        "forward": function(resource, assetType, resourceObjectId){
+            switch(assetType) {
+                case "application":
+                    Commerce.installApp(resource, true);
+                    break;
+                case "avatar":
+                    MyAvatar.useFullAvatarURL(resource);
+                    break;
+                case "content set":
+                    urlHandler.handleUrl("hifi://localhost/0,0,0");
+                    Commerce.replaceContentSet(toUrl(resource), "");
+                    break;
+                case "entity":
+                case "wearable":
+                    rezEntity(resource, assetType, resourceObjectId);
+                    break;
+                default:
+                    print("Marketplace item tester unsupported assetType " + assetType);
+            }
+        },
+        "trash": function(resource, assetType){
+            if ("application" === assetType) {
+                Commerce.uninstallApp(resource);
+            }
+            sendToScript({
+                method: "tester_deleteResourceObject",
+                objectId: resourceListModel.get(index).resourceObjectId});
+            resourceListModel.remove(index);
+        }
+    }
+
+    Item {
+        id: itemHeaderContainer
+        anchors.top: parent.top
+        anchors.topMargin: 8
+        anchors.left: parent.left
+        anchors.leftMargin: 8
+        width: parent.width - 16
+        height: childrenRect.height
+
+        Item {
+            id: itemNameContainer
+            width: parent.width * 0.5
+            height: childrenRect.height
+
+            HifiStylesUit.RalewaySemiBold {
+                id: resourceName
+                height: paintedHeight
+                width: parent.width
+                text: {
+                    var match = resource.match(/\/([^/]*)$/);
+                    return match ? match[1] : resource;
+                }
+                size: 14
+                color: hifi.colors.white
+                wrapMode: Text.WrapAnywhere
+            }
+
+            HifiStylesUit.RalewayRegular {
+                id: resourceUrl
+                anchors.top: resourceName.bottom;
+                anchors.topMargin: 4;
+                height: paintedHeight
+                width: parent.width
+                text: resource
+                size: 12
+                color: hifi.colors.faintGray;
+                wrapMode: Text.WrapAnywhere
+            }
+        }
+
+        HifiControlsUit.ComboBox {
+            id: comboBox
+            anchors.left: itemNameContainer.right
+            anchors.leftMargin: 4
+            anchors.verticalCenter: itemNameContainer.verticalCenter
+            height: 30
+            width: parent.width * 0.3 - anchors.leftMargin
+
+            model: [
+                "application",
+                "avatar",
+                "content set",
+                "entity",
+                "wearable",
+                "unknown"
+            ]
+
+            currentIndex: (("entity or wearable" === assetType) ?
+                model.indexOf("unknown") : model.indexOf(assetType))
+
+            Component.onCompleted: {
+                onCurrentIndexChanged.connect(function() {
+                    assetType = model[currentIndex];
+                    sendToScript({
+                        method: "tester_updateResourceObjectAssetType",
+                        objectId: resourceListModel.get(index)["resourceObjectId"],
+                        assetType: assetType });
+                });
+            }
+        }
+
+        Button {
+            id: actionButton
+            property var glyphs: {
+                "application": hifi.glyphs.install,
+                "avatar": hifi.glyphs.avatar,
+                "content set": hifi.glyphs.globe,
+                "entity": hifi.glyphs.wand,
+                "trash": hifi.glyphs.trash,
+                "unknown": hifi.glyphs.circleSlash,
+                "wearable": hifi.glyphs.hat
+            }
+            property int color: hifi.buttons.blue;
+            property int colorScheme: hifi.colorSchemes.dark;
+            anchors.left: comboBox.right
+            anchors.leftMargin: 4
+            anchors.verticalCenter: itemNameContainer.verticalCenter
+            width: parent.width * 0.10 - anchors.leftMargin
+            height: width
+            enabled: comboBox.model[comboBox.currentIndex] !== "unknown"
+
+            onClicked: {
+                if (model.currentlyRecordingResources) {
+                    model.currentlyRecordingResources = false;
+                } else {
+                    model.resourceAccessEventText = "";
+                    model.currentlyRecordingResources = true;
+                    root.actions["forward"](resource, comboBox.currentText, resourceObjectId);
+                }
+                sendToScript({
+                    method: "tester_updateResourceRecordingStatus",
+                    objectId: resourceListModel.get(index).resourceObjectId,
+                    status: model.currentlyRecordingResources
+                });
+            }
+
+            background: Rectangle {
+                radius: 4;
+                gradient: Gradient {
+                    GradientStop {
+                        position: 0.2
+                        color: {
+                            if (!actionButton.enabled) {
+                                hifi.buttons.disabledColorStart[actionButton.colorScheme]
+                            } else if (actionButton.pressed) {
+                                hifi.buttons.pressedColor[actionButton.color]
+                            } else if (actionButton.hovered) {
+                                hifi.buttons.hoveredColor[actionButton.color]
+                            } else {
+                                hifi.buttons.colorStart[actionButton.color]
+                            }
+                        }
+                    }
+                    GradientStop {
+                        position: 1.0
+                        color: {
+                            if (!actionButton.enabled) {
+                                hifi.buttons.disabledColorFinish[actionButton.colorScheme]
+                            } else if (actionButton.pressed) {
+                                hifi.buttons.pressedColor[actionButton.color]
+                            } else if (actionButton.hovered) {
+                                hifi.buttons.hoveredColor[actionButton.color]
+                            } else {
+                                hifi.buttons.colorFinish[actionButton.color]
+                            }
+                        }
+                    }
+                }
+            }
+
+            contentItem: Item {
+                HifiStylesUit.HiFiGlyphs {
+                    id: rezIcon;
+                    text: model.currentlyRecordingResources ? hifi.glyphs.scriptStop : actionButton.glyphs[comboBox.model[comboBox.currentIndex]];
+                    anchors.fill: parent
+                    size: 30;
+                    horizontalAlignment: Text.AlignHCenter;
+                    verticalAlignment: Text.AlignVCenter;
+                    color: enabled ? hifi.buttons.textColor[actionButton.color]
+                                    : hifi.buttons.disabledTextColor[actionButton.colorScheme]
+                }
+            }
+        }
+
+        Button {
+            id: trashButton
+            property int color: hifi.buttons.red;
+            property int colorScheme: hifi.colorSchemes.dark;
+            anchors.left: actionButton.right
+            anchors.verticalCenter: itemNameContainer.verticalCenter
+            anchors.leftMargin: 4
+            width: parent.width * 0.10 - anchors.leftMargin
+            height: width
+
+            onClicked: {
+                root.actions["trash"](resource, comboBox.currentText, resourceObjectId);
+            }
+
+            background: Rectangle {
+                radius: 4;
+                gradient: Gradient {
+                    GradientStop {
+                        position: 0.2
+                        color: {
+                            if (!trashButton.enabled) {
+                                hifi.buttons.disabledColorStart[trashButton.colorScheme]
+                            } else if (trashButton.pressed) {
+                                hifi.buttons.pressedColor[trashButton.color]
+                            } else if (trashButton.hovered) {
+                                hifi.buttons.hoveredColor[trashButton.color]
+                            } else {
+                                hifi.buttons.colorStart[trashButton.color]
+                            }
+                        }
+                    }
+                    GradientStop {
+                        position: 1.0
+                        color: {
+                            if (!trashButton.enabled) {
+                                hifi.buttons.disabledColorFinish[trashButton.colorScheme]
+                            } else if (trashButton.pressed) {
+                                hifi.buttons.pressedColor[trashButton.color]
+                            } else if (trashButton.hovered) {
+                                hifi.buttons.hoveredColor[trashButton.color]
+                            } else {
+                                hifi.buttons.colorFinish[trashButton.color]
+                            }
+                        }
+                    }
+                }
+            }
+
+            contentItem: Item {
+                HifiStylesUit.HiFiGlyphs {
+                    id: trashIcon;
+                    text: hifi.glyphs.trash
+                    anchors.fill: parent
+                    size: 22;
+                    horizontalAlignment: Text.AlignHCenter
+                    verticalAlignment: Text.AlignVCenter
+                    color: enabled ? hifi.buttons.textColor[trashButton.color]
+                                    : hifi.buttons.disabledTextColor[trashButton.colorScheme]
+                }
+            }
+        }
+    }
+
+    Item {
+        id: detailsContainer
+
+        width: parent.width - 16
+        height: root.detailsExpanded ? 300 : 26
+        anchors.top: itemHeaderContainer.bottom
+        anchors.topMargin: 12
+        anchors.left: parent.left
+        anchors.leftMargin: 8
+
+        HifiStylesUit.HiFiGlyphs {
+            id: detailsToggle
+            anchors.left: parent.left
+            anchors.leftMargin: -4
+            anchors.top: parent.top
+            anchors.topMargin: -2
+            width: 22
+            text: root.detailsExpanded ? hifi.glyphs.minimize : hifi.glyphs.maximize
+            color: hifi.colors.white
+            size: 22
+            MouseArea {
+                anchors.fill: parent
+                onClicked: root.detailsExpanded = !root.detailsExpanded
+            }
+        }
+
+        ScrollView {
+            id: detailsTextContainer
+            anchors.top: parent.top
+            anchors.left: detailsToggle.right
+            anchors.leftMargin: 4
+            anchors.right: parent.right
+            height: detailsContainer.height - (root.detailsExpanded ? (copyToClipboardButton.height + copyToClipboardButton.anchors.topMargin) : 0)
+            clip: true
+
+            TextArea {
+                id: detailsText
+                readOnly: true
+                color: hifi.colors.white
+                text: {
+                    var numUniqueResources = (model.resourceAccessEventText.split("\n").length - 1);
+                    if (root.detailsExpanded && numUniqueResources > 0) {
+                        return model.resourceAccessEventText
+                    } else {
+                        return numUniqueResources.toString() + " unique source/resource url pair" + (numUniqueResources === 1 ? "" : "s") + " recorded"
+                    }
+                }
+                font: Qt.font({ family: "Courier", pointSize: 8, weight: Font.Normal })
+                wrapMode: TextEdit.NoWrap
+
+                background: Rectangle {
+                    anchors.fill: parent;
+                    color: hifi.colors.baseGrayShadow;
+                    border.width: 0;
+                }
+            }
+
+            MouseArea {
+                anchors.fill: parent
+                onClicked: {
+                    if (root.detailsExpanded) {
+                        detailsText.selectAll();
+                    } else {
+                        root.detailsExpanded = true;
+                    }
+                }
+            }
+        }
+
+        HifiControlsUit.Button {
+            id: copyToClipboardButton;
+            visible: root.detailsExpanded
+            color: hifi.buttons.noneBorderlessWhite
+            colorScheme: hifi.colorSchemes.dark
+
+            anchors.top: detailsTextContainer.bottom
+            anchors.topMargin: 8
+            anchors.right: parent.right
+            width: 160
+            height: 30
+            text: "Copy to Clipboard"
+
+            onClicked: {
+                Window.copyToClipboard(detailsText.text);
+            }
+        }
+    }
+}
diff --git a/interface/resources/qml/hifi/commerce/marketplaceItemTester/MarketplaceItemTester.qml b/interface/resources/qml/hifi/commerce/marketplaceItemTester/MarketplaceItemTester.qml
index c3d87ca2f5..2a4f2d0e22 100644
--- a/interface/resources/qml/hifi/commerce/marketplaceItemTester/MarketplaceItemTester.qml
+++ b/interface/resources/qml/hifi/commerce/marketplaceItemTester/MarketplaceItemTester.qml
@@ -4,21 +4,19 @@
 //
 //  Load items not in the marketplace for testing purposes
 //
-//  Created by Zach Fox on 2018-09-05
+//  Created by Kerry Ivan Kurian on 2018-09-05
 //  Copyright 2018 High Fidelity, Inc.
 //
 //  Distributed under the Apache License, Version 2.0.
 //  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
 //
 
-import QtQuick 2.5
-import QtQuick.Controls 1.4
-import QtQuick.Controls.Styles 1.4
-import QtQuick.Dialogs 1.0
+import QtQuick 2.10
 import QtQuick.Layouts 1.1
+import QtQuick.Controls 2.3
 import Hifi 1.0 as Hifi
-import "../../../styles-uit" as HifiStylesUit
-import "../../../controls-uit" as HifiControlsUit
+import "qrc:////qml//styles-uit" as HifiStylesUit
+import "qrc:////qml//controls-uit" as HifiControlsUit
 
 
 
@@ -27,33 +25,223 @@ Rectangle {
 
     property string installedApps
     property var nextResourceObjectId: 0
-    signal sendToScript(var message)
 
     HifiStylesUit.HifiConstants { id: hifi }
     ListModel { id: resourceListModel }
 
-    color: hifi.colors.white
+    color: hifi.colors.darkGray
 
-    AnimatedImage {
-        id: spinner;
-        source: "spinner.gif"
-        width: 74;
-        height: width;
-        anchors.verticalCenter: parent.verticalCenter;
-        anchors.horizontalCenter: parent.horizontalCenter;
+    //
+    // TITLE BAR START
+    //
+    Item {
+        id: titleBarContainer
+        // Size
+        width: root.width
+        height: 50
+        // Anchors
+        anchors.left: parent.left
+        anchors.top: parent.top
+
+        // Title bar text
+        HifiStylesUit.RalewaySemiBold {
+            id: titleBarText
+            text: "Marketplace Item Tester"
+            // Text size
+            size: 24
+            // Anchors
+            anchors.top: parent.top
+			anchors.bottom: parent.bottom
+			anchors.left: parent.left
+            anchors.leftMargin: 16
+			width: paintedWidth
+            // Style
+            color: hifi.colors.lightGrayText
+            // Alignment
+            horizontalAlignment: Text.AlignHLeft
+            verticalAlignment: Text.AlignVCenter
+        }
+
+        // Separator
+        HifiControlsUit.Separator {
+            anchors.left: parent.left
+            anchors.right: parent.right
+            anchors.bottom: parent.bottom
+            anchors.bottomMargin: 1
+        }
+    }
+    //
+    // TITLE BAR END
+    //
+
+    Rectangle {
+        id: spinner
+        z: 999
+        anchors.top: titleBarContainer.bottom
+        anchors.left: parent.left
+        anchors.right: parent.right
+        anchors.bottom: buttonContainer.top
+        color: hifi.colors.darkGray
+
+        AnimatedImage {
+            source: "spinner.gif"
+            width: 74
+            height: width
+            anchors.centerIn: parent
+        }
+    }
+
+    Rectangle {
+        id: instructionsContainer
+        z: 998
+        color: hifi.colors.darkGray
+        visible: resourceListModel.count === 0 && !spinner.visible
+        anchors.top: titleBarContainer.bottom
+        anchors.topMargin: 20
+        anchors.left: parent.left
+        anchors.leftMargin: 20
+        anchors.right: parent.right
+        anchors.rightMargin: 20
+        anchors.bottom: buttonContainer.top
+        anchors.bottomMargin: 20
+
+        HifiStylesUit.RalewayRegular {
+            text: "Use Marketplace Item Tester to test out your items before submitting them to the Marketplace." +
+                "\n\nUse one of the buttons below to load your item."
+            // Text size
+            size: 20
+            // Anchors
+            anchors.fill: parent
+            // Style
+            color: hifi.colors.lightGrayText
+            wrapMode: Text.Wrap
+            // Alignment
+            horizontalAlignment: Text.AlignHCenter
+            verticalAlignment: Text.AlignVCenter
+        }
+    }
+
+    ListView {
+        id: itemList
+        visible: !instructionsContainer.visible
+        anchors.top: titleBarContainer.bottom
+        anchors.topMargin: 20
+        anchors.left: parent.left
+        anchors.right: parent.right
+        anchors.bottom: buttonContainer.top
+        anchors.bottomMargin: 20
+        ScrollBar.vertical: ScrollBar {
+            visible: !instructionsContainer.visible
+            policy: ScrollBar.AlwaysOn
+            parent: itemList.parent
+            anchors.top: itemList.top
+            anchors.right: itemList.right
+            anchors.bottom: itemList.bottom
+            width: 16
+        }
+        clip: true
+        model: resourceListModel
+        spacing: 8
+
+        delegate: ItemUnderTest { }
+    }
+
+    Item {
+        id: buttonContainer
+
+        anchors.left: parent.left
+        anchors.leftMargin: 12
+        anchors.right: parent.right
+        anchors.rightMargin: 12
+        anchors.bottom: parent.bottom
+        anchors.bottomMargin: 12
+        height: 40
+
+        property string currentAction
+        property var actions: {
+            "Load File": function() {
+                buttonContainer.currentAction = "load file";
+                Window.browseChanged.connect(onResourceSelected);
+                Window.browseAsync("Please select a file (*.app.json *.json *.fst *.json.gz)", "", "Assets (*.app.json *.json *.fst *.json.gz)");
+            },
+            "Load URL": function() {
+                buttonContainer.currentAction = "load url";
+                Window.promptTextChanged.connect(onResourceSelected);
+                Window.promptAsync("Please enter a URL", "");
+            }
+        }
+
+        function onResourceSelected(resource) {
+            // It is possible that we received the present signal
+            // from something other than our browserAsync window.
+            // Alas, there is nothing we can do about that so charge
+            // ahead as though we are sure the present signal is one
+            // we expect.
+            print("!!!! resource selected");
+            switch(currentAction) {
+                case "load file":
+                    Window.browseChanged.disconnect(onResourceSelected);
+                    break
+                case "load url":
+                    Window.promptTextChanged.disconnect(onResourceSelected);
+                    break;
+            }
+            if (resource) {
+                print("!!!! building resource object");
+                var resourceObj = buildResourceObj(resource);
+                print("!!!! notifying script of resource object");
+                sendToScript({
+                    method: 'tester_newResourceObject',
+                    resourceObject: resourceObj
+                });
+            }
+        }
+
+        HifiControlsUit.Button {
+            enabled: !spinner.visible
+            anchors.right: parent.horizontalCenter
+            anchors.rightMargin: width/4
+            anchors.verticalCenter: parent.verticalCenter
+            color: hifi.buttons.blue
+            fontSize: 20
+            text: "Load File"
+            width: parent.width / 3
+            height: parent.height
+            onClicked: buttonContainer.actions[text]()
+        }
+
+        HifiControlsUit.Button {
+            enabled: !spinner.visible
+            anchors.left: parent.horizontalCenter
+            anchors.leftMargin: width/4
+            anchors.verticalCenter: parent.verticalCenter
+            color: hifi.buttons.blue
+            fontSize: 20
+            text: "Load URL"
+            width: parent.width / 3
+            height: parent.height
+            onClicked: buttonContainer.actions[text]()
+        }
     }
 
     function fromScript(message) {
         switch (message.method) {
             case "newResourceObjectInTest":
                 var resourceObject = message.resourceObject;
+                resourceListModel.clear(); // REMOVE THIS once we support specific referrers
                 resourceListModel.append(resourceObject);
                 spinner.visible = false;
                 break;
             case "nextObjectIdInTest":
+                print("!!!! message from script! " + JSON.stringify(message));
                 nextResourceObjectId = message.id;
                 spinner.visible = false;
                 break;
+            case "resourceRequestEvent":
+                // When we support multiple items under test simultaneously,
+                // we'll have to replace "0" with the correct index.
+                resourceListModel.setProperty(0, "resourceAccessEventText", message.resourceAccessEventText);
+                break;
         }
     }
 
@@ -64,227 +252,26 @@ Rectangle {
                          resource.match(/\.json\.gz$/) ? "content set" :
                          resource.match(/\.json$/) ? "entity or wearable" :
                          "unknown");
-        return { "id": nextResourceObjectId++,
+        // Uncomment this once we support more than one item in test at the same time
+        //nextResourceObjectId++;
+        return { "resourceObjectId": nextResourceObjectId,
                  "resource": resource,
                  "assetType": assetType };
     }
 
-    function installResourceObj(resourceObj) {
-        if ("application" === resourceObj.assetType) {
-            Commerce.installApp(resourceObj.resource);
-        }
-    }
-
-    function addAllInstalledAppsToList() {
-        var i, apps = Commerce.getInstalledApps().split(","), len = apps.length;
-        for(i = 0; i < len - 1; ++i) {
-            if (i in apps) {
-                resourceListModel.append(buildResourceObj(apps[i]));
-            }
-        }
-    }
-
     function toUrl(resource) {
         var httpPattern = /^http/i;
         return httpPattern.test(resource) ? resource : "file:///" + resource;
     }
 
-    function rezEntity(resource, entityType) {
+    function rezEntity(resource, entityType, resourceObjectId) {
+        print("!!!! tester_rezClicked");
         sendToScript({
             method: 'tester_rezClicked',
             itemHref: toUrl(resource),
-            itemType: entityType});
+            itemType: entityType,
+            itemId:   resourceObjectId });
     }
 
-    ListView {
-        anchors.fill: parent
-        anchors.leftMargin: 12
-        anchors.bottomMargin: 40
-        anchors.rightMargin: 12
-        model: resourceListModel
-        spacing: 5
-        interactive: false
-
-        delegate: RowLayout {
-            anchors.left: parent.left
-            width: parent.width
-            spacing: 5
-
-            property var actions: {
-                "forward": function(resource, assetType){
-                    switch(assetType) {
-                        case "application":
-                            Commerce.openApp(resource);
-                            break;
-                        case "avatar":
-                            MyAvatar.useFullAvatarURL(resource);
-                            break;
-                        case "content set":
-                            urlHandler.handleUrl("hifi://localhost/0,0,0");
-                            Commerce.replaceContentSet(toUrl(resource), "");
-                            break;
-                        case "entity":
-                        case "wearable":
-                            rezEntity(resource, assetType);
-                            break;
-                        default:
-                            print("Marketplace item tester unsupported assetType " + assetType);
-                    }
-                },
-                "trash": function(resource, assetType){
-                    if ("application" === assetType) {
-                        Commerce.uninstallApp(resource);
-                    }
-                    sendToScript({
-                        method: "tester_deleteResourceObject",
-                        objectId: resourceListModel.get(index).id});
-                    resourceListModel.remove(index);
-                }
-            }
-
-            Column {
-                Layout.preferredWidth: root.width * .6
-                spacing: 5
-                Text {
-                    text: {
-                        var match = resource.match(/\/([^/]*)$/);
-                        return match ? match[1] : resource;
-                    }
-                    font.pointSize: 12
-                    horizontalAlignment: Text.AlignBottom
-                }
-                Text {
-                    text: resource
-                    font.pointSize: 8
-                    width: root.width * .6
-                    horizontalAlignment: Text.AlignBottom
-                    wrapMode: Text.WrapAnywhere
-                }
-            }
-
-            ComboBox {
-                id: comboBox
-
-                Layout.preferredWidth: root.width * .2
-
-                model: [
-                    "application",
-                    "avatar",
-                    "content set",
-                    "entity",
-                    "wearable",
-                    "unknown"
-                ]
-
-                currentIndex: (("entity or wearable" === assetType) ?
-                    model.indexOf("unknown") : model.indexOf(assetType))
-
-                Component.onCompleted: {
-                    onCurrentIndexChanged.connect(function() {
-                        assetType = model[currentIndex];
-                        sendToScript({
-                            method: "tester_updateResourceObjectAssetType",
-                            objectId: resourceListModel.get(index)["id"],
-                            assetType: assetType });
-                    });
-                }
-            }
-
-            Repeater {
-                model: [ "forward", "trash" ]
-
-                HifiStylesUit.HiFiGlyphs {
-                    property var glyphs: {
-                        "application": hifi.glyphs.install,
-                        "avatar": hifi.glyphs.avatar,
-                        "content set": hifi.glyphs.globe,
-                        "entity": hifi.glyphs.wand,
-                        "trash": hifi.glyphs.trash,
-                        "unknown": hifi.glyphs.circleSlash,
-                        "wearable": hifi.glyphs.hat,
-                    }
-                    text: (("trash" === modelData) ?
-                        glyphs.trash :
-                        glyphs[comboBox.model[comboBox.currentIndex]])
-                    size: ("trash" === modelData) ? 22 : 30
-                    color: hifi.colors.black
-                    horizontalAlignment: Text.AlignHCenter
-                    MouseArea {
-                        anchors.fill: parent
-                        onClicked: {
-                            actions[modelData](resource, comboBox.currentText);
-                        }
-                    }
-                }
-            }
-        }
-
-        headerPositioning: ListView.OverlayHeader
-        header: HifiStylesUit.RalewayRegular {
-            id: rootHeader
-            text: "Marketplace Item Tester"
-            height: 80
-            width: paintedWidth
-            size: 22
-            color: hifi.colors.black
-            anchors.left: parent.left
-            anchors.leftMargin: 12
-        }
-
-        footerPositioning: ListView.OverlayFooter
-        footer: Row {
-            id: rootActions
-            spacing: 20
-            anchors.horizontalCenter: parent.horizontalCenter
-
-            property string currentAction
-            property var actions: {
-                "Load File": function(){
-                    rootActions.currentAction = "load file";
-                    Window.browseChanged.connect(onResourceSelected);
-                    Window.browseAsync("Please select a file (*.app.json *.json *.fst *.json.gz)", "", "Assets (*.app.json *.json *.fst *.json.gz)");
-                },
-                "Load URL": function(){
-                    rootActions.currentAction = "load url";
-                    Window.promptTextChanged.connect(onResourceSelected);
-                    Window.promptAsync("Please enter a URL", "");
-                }
-            }
-
-            function onResourceSelected(resource) {
-                // It is possible that we received the present signal
-                // from something other than our browserAsync window.
-                // Alas, there is nothing we can do about that so charge
-                // ahead as though we are sure the present signal is one
-                // we expect.
-                switch(currentAction) {
-                    case "load file":
-                        Window.browseChanged.disconnect(onResourceSelected);
-                        break
-                    case "load url":
-                        Window.promptTextChanged.disconnect(onResourceSelected);
-                        break;
-                }
-                if (resource) {
-                    var resourceObj = buildResourceObj(resource);
-                    installResourceObj(resourceObj);
-                    sendToScript({
-                        method: 'tester_newResourceObject',
-                        resourceObject: resourceObj });
-                }
-            }
-
-            Repeater {
-                model: [ "Load File", "Load URL" ]
-                HifiControlsUit.Button {
-                    color: hifi.buttons.blue
-                    fontSize: 20
-                    text: modelData
-                    width: root.width / 3
-                    height: 40
-                    onClicked: actions[text]()
-                }
-            }
-        }
-    }
+    signal sendToScript(var message)
 }
diff --git a/interface/resources/qml/hifi/commerce/marketplaceItemTester/spinner.gif b/interface/resources/qml/hifi/commerce/marketplaceItemTester/spinner.gif
index 00f75ae62f..0536bd1884 100644
Binary files a/interface/resources/qml/hifi/commerce/marketplaceItemTester/spinner.gif and b/interface/resources/qml/hifi/commerce/marketplaceItemTester/spinner.gif differ
diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index e2c4df22db..e515a22403 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -226,6 +226,7 @@
 #include "commerce/Ledger.h"
 #include "commerce/Wallet.h"
 #include "commerce/QmlCommerce.h"
+#include "ResourceRequestObserver.h"
 
 #include "webbrowser/WebBrowserSuggestionsEngine.h"
 #include <DesktopPreviewProvider.h>
@@ -947,6 +948,7 @@ bool setupEssentials(int& argc, char** argv, bool runningMarkerExisted) {
     DependencyManager::set<WalletScriptingInterface>();
 
     DependencyManager::set<FadeEffect>();
+    DependencyManager::set<ResourceRequestObserver>();
 
     return previousSessionCrashed;
 }
@@ -3129,6 +3131,7 @@ void Application::onDesktopRootContextCreated(QQmlContext* surfaceContext) {
     surfaceContext->setContextProperty("ContextOverlay", DependencyManager::get<ContextOverlayInterface>().data());
     surfaceContext->setContextProperty("Wallet", DependencyManager::get<WalletScriptingInterface>().data());
     surfaceContext->setContextProperty("HiFiAbout", AboutUtil::getInstance());
+    surfaceContext->setContextProperty("ResourceRequestObserver", DependencyManager::get<ResourceRequestObserver>().data());
 
     if (auto steamClient = PluginManager::getInstance()->getSteamClientPlugin()) {
         surfaceContext->setContextProperty("Steam", new SteamScriptingInterface(engine, steamClient.get()));
@@ -5022,12 +5025,12 @@ void Application::saveSettings() const {
     PluginManager::getInstance()->saveSettings();
 }
 
-bool Application::importEntities(const QString& urlOrFilename) {
+bool Application::importEntities(const QString& urlOrFilename, const bool isObservable, const qint64 callerId) {
     bool success = false;
     _entityClipboard->withWriteLock([&] {
         _entityClipboard->eraseAllOctreeElements();
 
-        success = _entityClipboard->readFromURL(urlOrFilename);
+        success = _entityClipboard->readFromURL(urlOrFilename, isObservable, callerId);
         if (success) {
             _entityClipboard->reaverageOctreeElements();
         }
@@ -6811,6 +6814,7 @@ void Application::registerScriptEngineWithApplicationServices(ScriptEnginePointe
     scriptEngine->registerGlobalObject("Wallet", DependencyManager::get<WalletScriptingInterface>().data());
     scriptEngine->registerGlobalObject("AddressManager", DependencyManager::get<AddressManager>().data());
     scriptEngine->registerGlobalObject("HifiAbout", AboutUtil::getInstance());
+    scriptEngine->registerGlobalObject("ResourceRequestObserver", DependencyManager::get<ResourceRequestObserver>().data());
 
     qScriptRegisterMetaType(scriptEngine.data(), OverlayIDtoScriptValue, OverlayIDfromScriptValue);
 
@@ -7197,7 +7201,8 @@ void Application::addAssetToWorldFromURL(QString url) {
 
     addAssetToWorldInfo(filename, "Downloading model file " + filename + ".");
 
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, QUrl(url));
+    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        nullptr, QUrl(url), true, -1, "Application::addAssetToWorldFromURL");
     connect(request, &ResourceRequest::finished, this, &Application::addAssetToWorldFromURLRequestFinished);
     request->send();
 }
diff --git a/interface/src/Application.h b/interface/src/Application.h
index ed51e085b2..c3896a64e4 100644
--- a/interface/src/Application.h
+++ b/interface/src/Application.h
@@ -342,7 +342,7 @@ public slots:
     QVector<EntityItemID> pasteEntities(float x, float y, float z);
     bool exportEntities(const QString& filename, const QVector<EntityItemID>& entityIDs, const glm::vec3* givenOffset = nullptr);
     bool exportEntities(const QString& filename, float x, float y, float z, float scale);
-    bool importEntities(const QString& url);
+    bool importEntities(const QString& url, const bool isObservable = true, const qint64 callerId = -1);
     void updateThreadPoolCount() const;
     void updateSystemTabletMode();
     void goToErrorDomainURL(QUrl errorDomainURL);
diff --git a/interface/src/assets/ATPAssetMigrator.cpp b/interface/src/assets/ATPAssetMigrator.cpp
index 45ac80b054..be7f2014cc 100644
--- a/interface/src/assets/ATPAssetMigrator.cpp
+++ b/interface/src/assets/ATPAssetMigrator.cpp
@@ -53,7 +53,8 @@ void ATPAssetMigrator::loadEntityServerFile() {
 
             auto migrateResources = [=](QUrl migrationURL, QJsonValueRef jsonValue, bool isModelURL) {
                 auto request =
-                        DependencyManager::get<ResourceManager>()->createResourceRequest(this, migrationURL);
+                        DependencyManager::get<ResourceManager>()->createResourceRequest(
+                            this, migrationURL, true, -1, "ATPAssetMigrator::loadEntityServerFile");
 
                 if (request) {
                     qCDebug(asset_migrator) << "Requesting" << migrationURL << "for ATP asset migration";
diff --git a/interface/src/avatar/AvatarActionHold.cpp b/interface/src/avatar/AvatarActionHold.cpp
index 230f8aa64b..53074ac4ba 100644
--- a/interface/src/avatar/AvatarActionHold.cpp
+++ b/interface/src/avatar/AvatarActionHold.cpp
@@ -135,7 +135,7 @@ bool AvatarActionHold::getTarget(float deltaTimeStep, glm::quat& rotation, glm::
         glm::vec3 palmPosition;
         glm::quat palmRotation;
 
-        bool isTransitingWithAvatar = holdingAvatar->getTransit()->isTransiting();
+        bool isTransitingWithAvatar = holdingAvatar->getTransit()->isActive();
         if (isTransitingWithAvatar != _isTransitingWithAvatar) {
             _isTransitingWithAvatar = isTransitingWithAvatar;
             auto ownerEntity = _ownerEntity.lock();
@@ -424,7 +424,7 @@ bool AvatarActionHold::updateArguments(QVariantMap arguments) {
             if (ownerEntity) {
                 ownerEntity->setDynamicDataDirty(true);
                 ownerEntity->setDynamicDataNeedsTransmit(true);     
-                ownerEntity->setTransitingWithAvatar(myAvatar->getTransit()->isTransiting());
+                ownerEntity->setTransitingWithAvatar(myAvatar->getTransit()->isActive());
             }
         });
     }
diff --git a/interface/src/avatar/AvatarManager.cpp b/interface/src/avatar/AvatarManager.cpp
index c9b3449cec..dad4c44f4b 100644
--- a/interface/src/avatar/AvatarManager.cpp
+++ b/interface/src/avatar/AvatarManager.cpp
@@ -71,14 +71,12 @@ AvatarManager::AvatarManager(QObject* parent) :
         }
     });
 
-    const float AVATAR_TRANSIT_TRIGGER_DISTANCE = 1.0f;
-    const int AVATAR_TRANSIT_FRAME_COUNT = 11; // Based on testing
-    const int AVATAR_TRANSIT_FRAMES_PER_METER = 1; // Based on testing
-
     _transitConfig._totalFrames = AVATAR_TRANSIT_FRAME_COUNT;
-    _transitConfig._triggerDistance = AVATAR_TRANSIT_TRIGGER_DISTANCE;
+    _transitConfig._minTriggerDistance = AVATAR_TRANSIT_MIN_TRIGGER_DISTANCE;
+    _transitConfig._maxTriggerDistance = AVATAR_TRANSIT_MAX_TRIGGER_DISTANCE;
     _transitConfig._framesPerMeter = AVATAR_TRANSIT_FRAMES_PER_METER;
-    _transitConfig._isDistanceBased = true;
+    _transitConfig._isDistanceBased = AVATAR_TRANSIT_DISTANCE_BASED;
+    _transitConfig._abortDistance = AVATAR_TRANSIT_ABORT_DISTANCE;
 }
 
 AvatarSharedPointer AvatarManager::addAvatar(const QUuid& sessionUUID, const QWeakPointer<Node>& mixerWeakPointer) {
@@ -126,13 +124,39 @@ void AvatarManager::setSpace(workload::SpacePointer& space ) {
     _space = space;
 }
 
+void AvatarManager::handleTransitAnimations(AvatarTransit::Status status) {
+    switch (status) {
+        case AvatarTransit::Status::STARTED:
+            _myAvatar->getSkeletonModel()->getRig().triggerNetworkAnimation("preTransitAnim");
+            break;
+        case AvatarTransit::Status::START_TRANSIT:
+            _myAvatar->getSkeletonModel()->getRig().triggerNetworkAnimation("transitAnim");
+            break;
+        case AvatarTransit::Status::END_TRANSIT:
+            _myAvatar->getSkeletonModel()->getRig().triggerNetworkAnimation("postTransitAnim");
+            break;
+        case AvatarTransit::Status::ENDED:
+            _myAvatar->getSkeletonModel()->getRig().triggerNetworkAnimation("idleAnim");
+            break;
+        case AvatarTransit::Status::PRE_TRANSIT:
+            break;
+        case AvatarTransit::Status::POST_TRANSIT:
+            break;
+        case AvatarTransit::Status::IDLE:
+            break;
+        case AvatarTransit::Status::TRANSITING:
+            break;
+        case AvatarTransit::Status::ABORT_TRANSIT:
+            break;
+    }
+}
+
 void AvatarManager::updateMyAvatar(float deltaTime) {
     bool showWarnings = Menu::getInstance()->isOptionChecked(MenuOption::PipelineWarnings);
     PerformanceWarning warn(showWarnings, "AvatarManager::updateMyAvatar()");
 
-    AvatarTransit::Status status = _myAvatar->updateTransit(deltaTime, _myAvatar->getNextPosition(), _transitConfig);
-    bool sendFirstTransitPackage = (status == AvatarTransit::Status::START_TRANSIT);
-    bool blockTransitData = (status == AvatarTransit::Status::TRANSITING);
+    AvatarTransit::Status status = _myAvatar->updateTransit(deltaTime, _myAvatar->getNextPosition(), _myAvatar->getSensorToWorldScale(), _transitConfig);
+    handleTransitAnimations(status);
 
     _myAvatar->update(deltaTime);
     render::Transaction transaction;
@@ -142,18 +166,13 @@ void AvatarManager::updateMyAvatar(float deltaTime) {
     quint64 now = usecTimestampNow();
     quint64 dt = now - _lastSendAvatarDataTime;
 
-
-    if (sendFirstTransitPackage || (dt > MIN_TIME_BETWEEN_MY_AVATAR_DATA_SENDS && !_myAvatarDataPacketsPaused && !blockTransitData)) {
+    if (dt > MIN_TIME_BETWEEN_MY_AVATAR_DATA_SENDS && !_myAvatarDataPacketsPaused) {
         // send head/hand data to the avatar mixer and voxel server
-        PerformanceTimer perfTimer("send");
-        if (sendFirstTransitPackage) {
-            _myAvatar->overrideNextPackagePositionData(_myAvatar->getTransit()->getEndPosition());
-        }       
+        PerformanceTimer perfTimer("send"); 
         _myAvatar->sendAvatarDataPacket();
         _lastSendAvatarDataTime = now;
         _myAvatarSendRate.increment();
     }
-
 }
 
 
@@ -267,7 +286,7 @@ void AvatarManager::updateOtherAvatars(float deltaTime) {
             if (inView && avatar->hasNewJointData()) {
                 numAvatarsUpdated++;
             }
-            auto transitStatus = avatar->_transit.update(deltaTime, avatar->_globalPosition, _transitConfig);
+            auto transitStatus = avatar->_transit.update(deltaTime, avatar->_serverPosition, _transitConfig);
             if (avatar->getIsNewAvatar() && (transitStatus == AvatarTransit::Status::START_TRANSIT || transitStatus == AvatarTransit::Status::ABORT_TRANSIT)) {
                 avatar->_transit.reset();
                 avatar->setIsNewAvatar(false);
diff --git a/interface/src/avatar/AvatarManager.h b/interface/src/avatar/AvatarManager.h
index 34aa4f2cc0..78dac2d3ad 100644
--- a/interface/src/avatar/AvatarManager.h
+++ b/interface/src/avatar/AvatarManager.h
@@ -221,6 +221,7 @@ private:
     // frequently grabs a read lock on the hash to get a given avatar by ID
     void handleRemovedAvatar(const AvatarSharedPointer& removedAvatar,
                              KillAvatarReason removalReason = KillAvatarReason::NoReason) override;
+    void handleTransitAnimations(AvatarTransit::Status status);
 
     QVector<AvatarSharedPointer> _avatarsToFade;
 
diff --git a/interface/src/avatar/MyAvatar.cpp b/interface/src/avatar/MyAvatar.cpp
index a7c8c3e179..3299bd10e7 100755
--- a/interface/src/avatar/MyAvatar.cpp
+++ b/interface/src/avatar/MyAvatar.cpp
@@ -26,6 +26,7 @@
 #include <AccountManager.h>
 #include <AddressManager.h>
 #include <AudioClient.h>
+#include <ClientTraitsHandler.h>
 #include <display-plugins/DisplayPlugin.h>
 #include <FSTReader.h>
 #include <GeometryUtil.h>
@@ -463,10 +464,74 @@ void MyAvatar::reset(bool andRecenter, bool andReload, bool andHead) {
     }
 }
 
+void MyAvatar::updateSitStandState(float newHeightReading, float dt) {
+    const float STANDING_HEIGHT_MULTIPLE = 1.2f;
+    const float SITTING_HEIGHT_MULTIPLE = 0.833f;
+    const float SITTING_TIMEOUT = 4.0f;  // 4 seconds
+    const float STANDING_TIMEOUT = 0.3333f; // 1/3 second
+    const float SITTING_UPPER_BOUND = 1.52f;
+    if (!getIsSitStandStateLocked()) {
+        if (!getIsAway() && qApp->isHMDMode()) {
+            if (getIsInSittingState()) {
+                if (newHeightReading > (STANDING_HEIGHT_MULTIPLE * _tippingPoint)) {
+                    // if we recenter upwards then no longer in sitting state
+                    _sitStandStateTimer += dt;
+                    if (_sitStandStateTimer > STANDING_TIMEOUT) {
+                        _averageUserHeightSensorSpace = newHeightReading;
+                        _tippingPoint = newHeightReading;
+                        setIsInSittingState(false);
+                    }
+                } else if (newHeightReading < (SITTING_HEIGHT_MULTIPLE * _tippingPoint)) {
+                    // if we are mis labelled as sitting but we are standing in the real world this will
+                    // make sure that a real sit is still recognized so we won't be stuck in sitting unable to change state
+                    _sitStandStateTimer += dt;
+                    if (_sitStandStateTimer > SITTING_TIMEOUT) {
+                        _averageUserHeightSensorSpace = newHeightReading;
+                        _tippingPoint = newHeightReading;
+                        // here we stay in sit state but reset the average height
+                        setIsInSittingState(true);
+                    }
+                } else {
+                    // sanity check if average height greater than 5ft they are not sitting(or get off your dangerous barstool please)
+                    if (_averageUserHeightSensorSpace > SITTING_UPPER_BOUND) {
+                        setIsInSittingState(false);
+                    } else {
+                        // tipping point is average height when sitting.
+                        _tippingPoint = _averageUserHeightSensorSpace;
+                        _sitStandStateTimer = 0.0f;
+                    }
+                }
+            } else {
+                // in the standing state
+                if (newHeightReading < (SITTING_HEIGHT_MULTIPLE * _tippingPoint)) {
+                    _sitStandStateTimer += dt;
+                    if (_sitStandStateTimer > SITTING_TIMEOUT) {
+                        _averageUserHeightSensorSpace = newHeightReading;
+                        _tippingPoint = newHeightReading;
+                        setIsInSittingState(true);
+                    }
+                } else {
+                    // use the mode height for the tipping point when we are standing.
+                    _tippingPoint = getCurrentStandingHeight();
+                    _sitStandStateTimer = 0.0f;
+                }
+            }
+        } else {
+            //if you are away then reset the average and set state to standing.
+            _averageUserHeightSensorSpace = _userHeight.get();
+            _tippingPoint = _userHeight.get();
+            setIsInSittingState(false);
+        }
+    }
+}
+
 void MyAvatar::update(float deltaTime) {
     // update moving average of HMD facing in xz plane.
     const float HMD_FACING_TIMESCALE = getRotationRecenterFilterLength();
     const float PERCENTAGE_WEIGHT_HEAD_VS_SHOULDERS_AZIMUTH = 0.0f; // 100 percent shoulders
+    const float COSINE_THIRTY_DEGREES = 0.866f;
+    const float SQUATTY_TIMEOUT = 30.0f; // 30 seconds
+    const float HEIGHT_FILTER_COEFFICIENT = 0.01f;
 
     float tau = deltaTime / HMD_FACING_TIMESCALE;
     setHipToHandController(computeHandAzimuth());
@@ -493,11 +558,36 @@ void MyAvatar::update(float deltaTime) {
         _smoothOrientationTimer += deltaTime;
     }
 
-    float newHeightReading = getControllerPoseInAvatarFrame(controller::Action::HEAD).getTranslation().y;
-    int newHeightReadingInCentimeters = glm::floor(newHeightReading * CENTIMETERS_PER_METER);
-    _recentModeReadings.insert(newHeightReadingInCentimeters);
-    setCurrentStandingHeight(computeStandingHeightMode(getControllerPoseInAvatarFrame(controller::Action::HEAD)));
-    setAverageHeadRotation(computeAverageHeadRotation(getControllerPoseInAvatarFrame(controller::Action::HEAD)));
+    controller::Pose newHeightReading = getControllerPoseInSensorFrame(controller::Action::HEAD);
+    if (newHeightReading.isValid()) {
+        int newHeightReadingInCentimeters = glm::floor(newHeightReading.getTranslation().y * CENTIMETERS_PER_METER);
+        _averageUserHeightSensorSpace = lerp(_averageUserHeightSensorSpace, newHeightReading.getTranslation().y, HEIGHT_FILTER_COEFFICIENT);
+        _recentModeReadings.insert(newHeightReadingInCentimeters);
+        setCurrentStandingHeight(computeStandingHeightMode(newHeightReading));
+        setAverageHeadRotation(computeAverageHeadRotation(getControllerPoseInAvatarFrame(controller::Action::HEAD)));
+    }
+
+    // if the spine is straight and the head is below the default position by 5 cm then increment squatty count.
+    const float SQUAT_THRESHOLD = 0.05f;
+    glm::vec3 headDefaultPositionAvatarSpace = getAbsoluteDefaultJointTranslationInObjectFrame(getJointIndex("Head"));
+    glm::quat spine2OrientationAvatarSpace = getAbsoluteJointRotationInObjectFrame(getJointIndex("Spine2"));
+    glm::vec3 upSpine2 = spine2OrientationAvatarSpace * glm::vec3(0.0f, 1.0f, 0.0f);
+    if (glm::length(upSpine2) > 0.0f) {
+        upSpine2 = glm::normalize(upSpine2);
+    }
+    float angleSpine2 = glm::dot(upSpine2, glm::vec3(0.0f, 1.0f, 0.0f));
+    if (getControllerPoseInAvatarFrame(controller::Action::HEAD).getTranslation().y < (headDefaultPositionAvatarSpace.y - SQUAT_THRESHOLD) && (angleSpine2 > COSINE_THIRTY_DEGREES)) {
+        _squatTimer += deltaTime;
+        if (_squatTimer > SQUATTY_TIMEOUT) {
+            _squatTimer = 0.0f;
+            _follow._squatDetected = true;
+        }
+    } else {
+        _squatTimer = 0.0f;
+    }
+
+    // put update sit stand state counts here
+    updateSitStandState(newHeightReading.getTranslation().y, deltaTime);
 
     if (_drawAverageFacingEnabled) {
         auto sensorHeadPose = getControllerPoseInSensorFrame(controller::Action::HEAD);
@@ -968,7 +1058,6 @@ void MyAvatar::updateSensorToWorldMatrix() {
     updateJointFromController(controller::Action::RIGHT_HAND, _controllerRightHandMatrixCache);
     
     if (hasSensorToWorldScaleChanged) {
-        setTransitScale(sensorToWorldScale);
         emit sensorToWorldScaleChanged(sensorToWorldScale);
     }
     
@@ -3557,12 +3646,9 @@ glm::vec3 MyAvatar::computeCounterBalance() {
     glm::vec3 counterBalancedCg = (1.0f / DEFAULT_AVATAR_HIPS_MASS) * counterBalancedForHead;
 
     // find the height of the hips
-    const float UPPER_LEG_FRACTION = 0.3333f;
     glm::vec3 xzDiff((cgHeadMass.position.x - counterBalancedCg.x), 0.0f, (cgHeadMass.position.z - counterBalancedCg.z));
     float headMinusHipXz = glm::length(xzDiff);
     float headHipDefault = glm::length(tposeHead - tposeHips);
-    float hipFootDefault = tposeHips.y - tposeRightFoot.y;
-    float sitSquatThreshold = tposeHips.y - (UPPER_LEG_FRACTION * hipFootDefault);
     float hipHeight = 0.0f;
     if (headHipDefault > headMinusHipXz) {
         hipHeight = sqrtf((headHipDefault * headHipDefault) - (headMinusHipXz * headMinusHipXz));
@@ -3574,10 +3660,6 @@ glm::vec3 MyAvatar::computeCounterBalance() {
     if (counterBalancedCg.y > (tposeHips.y + 0.05f)) {
         // if the height is higher than default hips, clamp to default hips
         counterBalancedCg.y = tposeHips.y + 0.05f;
-    } else if (counterBalancedCg.y < sitSquatThreshold) {
-        //do a height reset
-        setResetMode(true);
-        _follow.activate(FollowHelper::Vertical);
     }
     return counterBalancedCg;
 }
@@ -3818,6 +3900,18 @@ bool MyAvatar::getIsInWalkingState() const {
     return _isInWalkingState;
 }
 
+bool MyAvatar::getIsInSittingState() const {
+    return _isInSittingState.get();
+}
+
+MyAvatar::SitStandModelType MyAvatar::getUserRecenterModel() const {
+    return _userRecenterModel.get();
+}
+
+bool MyAvatar::getIsSitStandStateLocked() const {
+    return _lockSitStandState.get();
+}
+
 float MyAvatar::getWalkSpeed() const {
     return _walkSpeed.get() * _walkSpeedScalar;
 }
@@ -3838,6 +3932,61 @@ void MyAvatar::setIsInWalkingState(bool isWalking) {
     _isInWalkingState = isWalking;
 }
 
+void MyAvatar::setIsInSittingState(bool isSitting) {
+    _sitStandStateTimer = 0.0f;
+    _squatTimer = 0.0f;
+    // on reset height we need the count to be more than one in case the user sits and stands up quickly.
+    _isInSittingState.set(isSitting);
+    setResetMode(true);
+    if (isSitting) {
+        setCenterOfGravityModelEnabled(false);
+    } else {
+        setCenterOfGravityModelEnabled(true);
+    }
+    setSitStandStateChange(true);
+}
+
+void MyAvatar::setUserRecenterModel(MyAvatar::SitStandModelType modelName) {
+
+    _userRecenterModel.set(modelName);
+
+    switch (modelName) {
+        case MyAvatar::SitStandModelType::ForceSit:
+            setHMDLeanRecenterEnabled(true);
+            setIsInSittingState(true);
+            setIsSitStandStateLocked(true);
+            break;
+        case MyAvatar::SitStandModelType::ForceStand:
+            setHMDLeanRecenterEnabled(true);
+            setIsInSittingState(false);
+            setIsSitStandStateLocked(true);
+            break;
+        case MyAvatar::SitStandModelType::Auto:
+        default:
+            setHMDLeanRecenterEnabled(true);
+            setIsInSittingState(false);
+            setIsSitStandStateLocked(false);
+            break;
+        case MyAvatar::SitStandModelType::DisableHMDLean:
+            setHMDLeanRecenterEnabled(false);
+            setIsInSittingState(false);
+            setIsSitStandStateLocked(false);
+            break;
+    }
+}
+
+void MyAvatar::setIsSitStandStateLocked(bool isLocked) {
+    _lockSitStandState.set(isLocked);
+    _sitStandStateTimer = 0.0f;
+    _squatTimer = 0.0f;
+    _averageUserHeightSensorSpace = _userHeight.get();
+    _tippingPoint = _userHeight.get();
+    if (!isLocked) {
+        // always start the auto transition mode in standing state.
+        setIsInSittingState(false);
+    }
+}
+
 void MyAvatar::setWalkSpeed(float value) {
     _walkSpeed.set(value);
 }
@@ -3854,6 +4003,14 @@ float MyAvatar::getSprintSpeed() const {
     return _sprintSpeed.get();
 }
 
+void MyAvatar::setSitStandStateChange(bool stateChanged) {
+    _sitStandStateChange = stateChanged;
+}
+
+float MyAvatar::getSitStandStateChange() const {
+    return _sitStandStateChange;
+}
+
 QVector<QString> MyAvatar::getScriptUrls() {
     QVector<QString> scripts = _skeletonModel->isLoaded() ? _skeletonModel->getFBXGeometry().scripts : QVector<QString>();
     return scripts;
@@ -3997,6 +4154,7 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontal(const MyAvatar& myAvatar,
     // x axis of currentBodyMatrix in world space.
     glm::vec3 right = glm::normalize(glm::vec3(currentBodyMatrix[0][0], currentBodyMatrix[1][0], currentBodyMatrix[2][0]));
     glm::vec3 offset = extractTranslation(desiredBodyMatrix) - extractTranslation(currentBodyMatrix);
+    controller::Pose currentHeadPose = myAvatar.getControllerPoseInAvatarFrame(controller::Action::HEAD);
 
     float forwardLeanAmount = glm::dot(forward, offset);
     float lateralLeanAmount = glm::dot(right, offset);
@@ -4005,14 +4163,19 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontal(const MyAvatar& myAvatar,
     const float MAX_FORWARD_LEAN = 0.15f;
     const float MAX_BACKWARD_LEAN = 0.1f;
 
-
-    if (forwardLeanAmount > 0 && forwardLeanAmount > MAX_FORWARD_LEAN) {
-        return true;
+    bool stepDetected = false;
+    if (myAvatar.getIsInSittingState()) {
+        if (!withinBaseOfSupport(currentHeadPose)) {
+            stepDetected = true;
+        }
+    } else if (forwardLeanAmount > 0 && forwardLeanAmount > MAX_FORWARD_LEAN) {
+        stepDetected = true;
     } else if (forwardLeanAmount < 0 && forwardLeanAmount < -MAX_BACKWARD_LEAN) {
-        return true;
+        stepDetected = true;
+    } else {
+        stepDetected = fabs(lateralLeanAmount) > MAX_LATERAL_LEAN;
     }
-
-    return fabs(lateralLeanAmount) > MAX_LATERAL_LEAN;
+    return stepDetected;
 }
 
 bool MyAvatar::FollowHelper::shouldActivateHorizontalCG(MyAvatar& myAvatar) const {
@@ -4021,6 +4184,7 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontalCG(MyAvatar& myAvatar) cons
     controller::Pose currentHeadPose = myAvatar.getControllerPoseInAvatarFrame(controller::Action::HEAD);
     controller::Pose currentLeftHandPose = myAvatar.getControllerPoseInAvatarFrame(controller::Action::LEFT_HAND);
     controller::Pose currentRightHandPose = myAvatar.getControllerPoseInAvatarFrame(controller::Action::RIGHT_HAND);
+    controller::Pose currentHeadSensorPose = myAvatar.getControllerPoseInSensorFrame(controller::Action::HEAD);
 
     bool stepDetected = false;
     float myScale = myAvatar.getAvatarScale();
@@ -4030,7 +4194,7 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontalCG(MyAvatar& myAvatar) cons
     } else {
         if (!withinBaseOfSupport(currentHeadPose) &&
             headAngularVelocityBelowThreshold(currentHeadPose) &&
-            isWithinThresholdHeightMode(currentHeadPose, myAvatar.getCurrentStandingHeight(), myScale) &&
+            isWithinThresholdHeightMode(currentHeadSensorPose, myAvatar.getCurrentStandingHeight(), myScale) &&
             handDirectionMatchesHeadDirection(currentLeftHandPose, currentRightHandPose, currentHeadPose) &&
             handAngularVelocityBelowThreshold(currentLeftHandPose, currentRightHandPose) &&
             headVelocityGreaterThanThreshold(currentHeadPose) &&
@@ -4046,6 +4210,7 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontalCG(MyAvatar& myAvatar) cons
             glm::vec3 currentHeadPosition = currentHeadPose.getTranslation();
             float anatomicalHeadToHipsDistance = glm::length(defaultHeadPosition - defaultHipsPosition);
             if (!isActive(Horizontal) &&
+                (!isActive(Vertical)) &&
                 (glm::length(currentHeadPosition - defaultHipsPosition) > (anatomicalHeadToHipsDistance + (DEFAULT_AVATAR_SPINE_STRETCH_LIMIT * anatomicalHeadToHipsDistance)))) {
                 myAvatar.setResetMode(true);
                 stepDetected = true;
@@ -4061,10 +4226,32 @@ bool MyAvatar::FollowHelper::shouldActivateHorizontalCG(MyAvatar& myAvatar) cons
 bool MyAvatar::FollowHelper::shouldActivateVertical(const MyAvatar& myAvatar, const glm::mat4& desiredBodyMatrix, const glm::mat4& currentBodyMatrix) const {
     const float CYLINDER_TOP = 0.1f;
     const float CYLINDER_BOTTOM = -1.5f;
+    const float SITTING_BOTTOM = -0.02f;
 
     glm::vec3 offset = extractTranslation(desiredBodyMatrix) - extractTranslation(currentBodyMatrix);
+    bool returnValue = false;
 
-    return (offset.y > CYLINDER_TOP) || (offset.y < CYLINDER_BOTTOM);
+    if (myAvatar.getSitStandStateChange()) {
+        returnValue = true;
+    } else {
+        if (myAvatar.getIsInSittingState()) {
+            if (myAvatar.getIsSitStandStateLocked()) {
+                returnValue = (offset.y > CYLINDER_TOP);
+            }
+            if (offset.y < SITTING_BOTTOM) {
+                // we recenter more easily when in sitting state.
+                returnValue = true;
+            }
+        } else {
+            // in the standing state
+            returnValue = (offset.y > CYLINDER_TOP) || (offset.y < CYLINDER_BOTTOM);
+            // finally check for squats in standing
+            if (_squatDetected) {
+                returnValue = true;
+            }
+        }
+    }
+    return returnValue;
 }
 
 void MyAvatar::FollowHelper::prePhysicsUpdate(MyAvatar& myAvatar, const glm::mat4& desiredBodyMatrix,
@@ -4085,9 +4272,10 @@ void MyAvatar::FollowHelper::prePhysicsUpdate(MyAvatar& myAvatar, const glm::mat
                 }
             }
         } else {
+            // center of gravity model is not enabled
             if (!isActive(Horizontal) && (shouldActivateHorizontal(myAvatar, desiredBodyMatrix, currentBodyMatrix) || hasDriveInput)) {
                 activate(Horizontal);
-                if (myAvatar.getEnableStepResetRotation()) {
+                if (myAvatar.getEnableStepResetRotation() && !myAvatar.getIsInSittingState()) {
                     activate(Rotation);
                     myAvatar.setHeadControllerFacingMovingAverage(myAvatar.getHeadControllerFacing());
                 }
@@ -4095,6 +4283,9 @@ void MyAvatar::FollowHelper::prePhysicsUpdate(MyAvatar& myAvatar, const glm::mat
         }
         if (!isActive(Vertical) && (shouldActivateVertical(myAvatar, desiredBodyMatrix, currentBodyMatrix) || hasDriveInput)) {
             activate(Vertical);
+            if (_squatDetected) {
+                _squatDetected = false;
+            }
         }
     } else {
         if (!isActive(Rotation) && getForceActivateRotation()) {
@@ -4144,7 +4335,7 @@ void MyAvatar::FollowHelper::prePhysicsUpdate(MyAvatar& myAvatar, const glm::mat
     myAvatar.getCharacterController()->setFollowParameters(followWorldPose, getMaxTimeRemaining());
 }
 
-glm::mat4 MyAvatar::FollowHelper::postPhysicsUpdate(const MyAvatar& myAvatar, const glm::mat4& currentBodyMatrix) {
+glm::mat4 MyAvatar::FollowHelper::postPhysicsUpdate(MyAvatar& myAvatar, const glm::mat4& currentBodyMatrix) {
     if (isActive()) {
         float dt = myAvatar.getCharacterController()->getFollowTime();
         decrementTimeRemaining(dt);
@@ -4161,6 +4352,11 @@ glm::mat4 MyAvatar::FollowHelper::postPhysicsUpdate(const MyAvatar& myAvatar, co
 
         glm::mat4 newBodyMat = createMatFromQuatAndPos(sensorAngularDisplacement * glmExtractRotation(currentBodyMatrix),
                                                        sensorLinearDisplacement + extractTranslation(currentBodyMatrix));
+        if (myAvatar.getSitStandStateChange()) {
+            myAvatar.setSitStandStateChange(false);
+            deactivate(Vertical);
+            setTranslation(newBodyMat, extractTranslation(myAvatar.deriveBodyFromHMDSensor()));
+        }
         return newBodyMat;
     } else {
         return currentBodyMatrix;
diff --git a/interface/src/avatar/MyAvatar.h b/interface/src/avatar/MyAvatar.h
index 08a7c09fa4..799427530a 100644
--- a/interface/src/avatar/MyAvatar.h
+++ b/interface/src/avatar/MyAvatar.h
@@ -21,7 +21,6 @@
 #include <AvatarConstants.h>
 #include <avatars-renderer/Avatar.h>
 #include <avatars-renderer/ScriptAvatar.h>
-#include <ClientTraitsHandler.h>
 #include <controllers/Pose.h>
 #include <controllers/Actions.h>
 #include <EntityItem.h>
@@ -142,6 +141,8 @@ class MyAvatar : public Avatar {
      * @property {number} walkSpeed
      * @property {number} walkBackwardSpeed
      * @property {number} sprintSpeed
+     * @property {number} isInSittingState
+     * @property {number} userRecenterModel
      *
      * @property {Vec3} skeletonOffset - Can be used to apply a translation offset between the avatar's position and the
      *     registration point of the 3D model.
@@ -242,6 +243,9 @@ class MyAvatar : public Avatar {
     Q_PROPERTY(float walkSpeed READ getWalkSpeed WRITE setWalkSpeed);
     Q_PROPERTY(float walkBackwardSpeed READ getWalkBackwardSpeed WRITE setWalkBackwardSpeed);
     Q_PROPERTY(float sprintSpeed READ getSprintSpeed WRITE setSprintSpeed);
+    Q_PROPERTY(bool isInSittingState READ getIsInSittingState WRITE setIsInSittingState);
+    Q_PROPERTY(MyAvatar::SitStandModelType userRecenterModel READ getUserRecenterModel WRITE setUserRecenterModel);
+    Q_PROPERTY(bool isSitStandStateLocked READ getIsSitStandStateLocked WRITE setIsSitStandStateLocked);
 
     const QString DOMINANT_LEFT_HAND = "left";
     const QString DOMINANT_RIGHT_HAND = "right";
@@ -262,6 +266,15 @@ public:
     };
     Q_ENUM(DriveKeys)
 
+    enum SitStandModelType {
+        ForceSit = 0,
+        ForceStand,
+        Auto,
+        DisableHMDLean,
+        NumSitStandTypes
+    };
+    Q_ENUM(SitStandModelType)
+
     explicit MyAvatar(QThread* thread);
     virtual ~MyAvatar();
 
@@ -1121,12 +1134,21 @@ public:
 
     void setIsInWalkingState(bool isWalking);
     bool getIsInWalkingState() const;
+    void setIsInSittingState(bool isSitting);
+    bool getIsInSittingState() const;
+    void setUserRecenterModel(MyAvatar::SitStandModelType modelName);
+    MyAvatar::SitStandModelType getUserRecenterModel() const;
+    void setIsSitStandStateLocked(bool isLocked);
+    bool getIsSitStandStateLocked() const;
     void setWalkSpeed(float value);
     float getWalkSpeed() const;
     void setWalkBackwardSpeed(float value);
     float getWalkBackwardSpeed() const;
     void setSprintSpeed(float value);
     float getSprintSpeed() const;
+    void setSitStandStateChange(bool stateChanged);
+    float getSitStandStateChange() const;
+    void updateSitStandState(float newHeightReading, float dt);
 
     QVector<QString> getScriptUrls();
 
@@ -1532,6 +1554,7 @@ signals:
      */
     void disableHandTouchForIDChanged(const QUuid& entityID, bool disable);
 
+
 private slots:
     void leaveDomain();
     void updateCollisionCapsuleCache();
@@ -1742,7 +1765,7 @@ private:
         bool shouldActivateHorizontal(const MyAvatar& myAvatar, const glm::mat4& desiredBodyMatrix, const glm::mat4& currentBodyMatrix) const;
         bool shouldActivateHorizontalCG(MyAvatar& myAvatar) const;
         void prePhysicsUpdate(MyAvatar& myAvatar, const glm::mat4& bodySensorMatrix, const glm::mat4& currentBodyMatrix, bool hasDriveInput);
-        glm::mat4 postPhysicsUpdate(const MyAvatar& myAvatar, const glm::mat4& currentBodyMatrix);
+        glm::mat4 postPhysicsUpdate(MyAvatar& myAvatar, const glm::mat4& currentBodyMatrix);
         bool getForceActivateRotation() const;
         void setForceActivateRotation(bool val);
         bool getForceActivateVertical() const;
@@ -1751,6 +1774,7 @@ private:
         void setForceActivateHorizontal(bool val);
         bool getToggleHipsFollowing() const;
         void setToggleHipsFollowing(bool followHead);
+        bool _squatDetected { false };
         std::atomic<bool> _forceActivateRotation { false };
         std::atomic<bool> _forceActivateVertical { false };
         std::atomic<bool> _forceActivateHorizontal { false };
@@ -1820,10 +1844,13 @@ private:
     std::mutex _pinnedJointsMutex;
     std::vector<int> _pinnedJoints;
 
+    void updateChildCauterization(SpatiallyNestablePointer object, bool cauterize);
+
     // height of user in sensor space, when standing erect.
     ThreadSafeValueCache<float> _userHeight { DEFAULT_AVATAR_HEIGHT };
-
-    void updateChildCauterization(SpatiallyNestablePointer object, bool cauterize);
+    float _averageUserHeightSensorSpace { _userHeight.get() };
+    bool _sitStandStateChange { false };
+    ThreadSafeValueCache<bool> _lockSitStandState { false };
 
     // max unscaled forward movement speed
     ThreadSafeValueCache<float> _walkSpeed { DEFAULT_AVATAR_MAX_WALKING_SPEED };
@@ -1831,6 +1858,11 @@ private:
     ThreadSafeValueCache<float> _sprintSpeed { AVATAR_SPRINT_SPEED_SCALAR };
     float _walkSpeedScalar { AVATAR_WALK_SPEED_SCALAR };
     bool _isInWalkingState { false };
+    ThreadSafeValueCache<bool> _isInSittingState { false };
+    ThreadSafeValueCache<MyAvatar::SitStandModelType> _userRecenterModel { MyAvatar::SitStandModelType::Auto };
+    float _sitStandStateTimer { 0.0f };
+    float _squatTimer { 0.0f };
+    float _tippingPoint { _userHeight.get() };
 
     // load avatar scripts once when rig is ready
     bool _shouldLoadScripts { false };
diff --git a/interface/src/avatar/MySkeletonModel.cpp b/interface/src/avatar/MySkeletonModel.cpp
index c1a49d7a10..e5b9df7dd1 100644
--- a/interface/src/avatar/MySkeletonModel.cpp
+++ b/interface/src/avatar/MySkeletonModel.cpp
@@ -46,7 +46,7 @@ static AnimPose computeHipsInSensorFrame(MyAvatar* myAvatar, bool isFlying) {
     }
 
     glm::mat4 hipsMat;
-    if (myAvatar->getCenterOfGravityModelEnabled() && !isFlying && !(myAvatar->getIsInWalkingState()) && myAvatar->getHMDLeanRecenterEnabled()) {
+    if (myAvatar->getCenterOfGravityModelEnabled() && !isFlying && !(myAvatar->getIsInWalkingState()) && !(myAvatar->getIsInSittingState()) && myAvatar->getHMDLeanRecenterEnabled()) {
         // then we use center of gravity model
         hipsMat = myAvatar->deriveBodyUsingCgModel();
     } else {
@@ -250,6 +250,7 @@ void MySkeletonModel::updateRig(float deltaTime, glm::mat4 parentTransform) {
             bool headExists = _rig.getAbsoluteJointPoseInRigFrame(_rig.indexOfJoint("Head"), currentHeadPose);
             bool hipsExists = _rig.getAbsoluteJointPoseInRigFrame(_rig.indexOfJoint("Hips"), currentHipsPose);
             if (spine2Exists && headExists && hipsExists) {
+
                 AnimPose rigSpaceYaw(myAvatar->getSpine2RotationRigSpace());
                 glm::vec3 u, v, w;
                 glm::vec3 fwd = rigSpaceYaw.rot() * glm::vec3(0.0f, 0.0f, 1.0f);
diff --git a/interface/src/commerce/QmlCommerce.cpp b/interface/src/commerce/QmlCommerce.cpp
index aa39fdc1b9..ffe89ffc5b 100644
--- a/interface/src/commerce/QmlCommerce.cpp
+++ b/interface/src/commerce/QmlCommerce.cpp
@@ -315,7 +315,7 @@ QString QmlCommerce::getInstalledApps(const QString& justInstalledAppID) {
     return installedAppsFromMarketplace;
 }
 
-bool QmlCommerce::installApp(const QString& itemHref) {
+bool QmlCommerce::installApp(const QString& itemHref, const bool& alsoOpenImmediately) {
     if (!QDir(_appsPath).exists()) {
         if (!QDir().mkdir(_appsPath)) {
             qCDebug(commerce) << "Couldn't make _appsPath directory.";
@@ -325,7 +325,8 @@ bool QmlCommerce::installApp(const QString& itemHref) {
 
     QUrl appHref(itemHref);
 
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(this, appHref);
+    auto request =
+        DependencyManager::get<ResourceManager>()->createResourceRequest(this, appHref, true, -1, "QmlCommerce::installApp");
 
     if (!request) {
         qCDebug(commerce) << "Couldn't create resource request for app.";
@@ -357,13 +358,22 @@ bool QmlCommerce::installApp(const QString& itemHref) {
         QJsonObject appFileJsonObject = appFileJsonDocument.object();
         QString scriptUrl = appFileJsonObject["scriptURL"].toString();
 
-        if ((DependencyManager::get<ScriptEngines>()->loadScript(scriptUrl.trimmed())).isNull()) {
-            qCDebug(commerce) << "Couldn't load script.";
-            return false;
+        // Don't try to re-load (install) a script if it's already running
+        QStringList runningScripts = DependencyManager::get<ScriptEngines>()->getRunningScripts();
+        if (!runningScripts.contains(scriptUrl)) {
+            if ((DependencyManager::get<ScriptEngines>()->loadScript(scriptUrl.trimmed())).isNull()) {
+                qCDebug(commerce) << "Couldn't load script.";
+                return false;
+            }
+
+            QFileInfo appFileInfo(appFile);
+            emit appInstalled(appFileInfo.baseName());
+        }
+
+        if (alsoOpenImmediately) {
+            QmlCommerce::openApp(itemHref);
         }
 
-        QFileInfo appFileInfo(appFile);
-        emit appInstalled(appFileInfo.baseName());
         return true;
     });
     request->send();
diff --git a/interface/src/commerce/QmlCommerce.h b/interface/src/commerce/QmlCommerce.h
index bee30e1b62..2e3c0ec24d 100644
--- a/interface/src/commerce/QmlCommerce.h
+++ b/interface/src/commerce/QmlCommerce.h
@@ -88,7 +88,7 @@ protected:
     Q_INVOKABLE void replaceContentSet(const QString& itemHref, const QString& certificateID);
 
     Q_INVOKABLE QString getInstalledApps(const QString& justInstalledAppID = "");
-    Q_INVOKABLE bool installApp(const QString& appHref);
+    Q_INVOKABLE bool installApp(const QString& appHref, const bool& alsoOpenImmediately = false);
     Q_INVOKABLE bool uninstallApp(const QString& appHref);
     Q_INVOKABLE bool openApp(const QString& appHref);
 
diff --git a/interface/src/scripting/ClipboardScriptingInterface.cpp b/interface/src/scripting/ClipboardScriptingInterface.cpp
index c2d2b69883..c14f4ea895 100644
--- a/interface/src/scripting/ClipboardScriptingInterface.cpp
+++ b/interface/src/scripting/ClipboardScriptingInterface.cpp
@@ -46,11 +46,17 @@ bool ClipboardScriptingInterface::exportEntities(const QString& filename, float
     return retVal;
 }
 
-bool ClipboardScriptingInterface::importEntities(const QString& filename) {
+bool ClipboardScriptingInterface::importEntities(
+    const QString& filename,
+    const bool isObservable,
+    const qint64 callerId
+) {
     bool retVal;
     BLOCKING_INVOKE_METHOD(qApp, "importEntities",
                               Q_RETURN_ARG(bool, retVal),
-                              Q_ARG(const QString&, filename));
+                              Q_ARG(const QString&, filename),
+                              Q_ARG(const bool, isObservable),
+                              Q_ARG(const qint64, callerId));
     return retVal;
 }
 
diff --git a/interface/src/scripting/ClipboardScriptingInterface.h b/interface/src/scripting/ClipboardScriptingInterface.h
index 32b8c64a7d..60b6ca2e03 100644
--- a/interface/src/scripting/ClipboardScriptingInterface.h
+++ b/interface/src/scripting/ClipboardScriptingInterface.h
@@ -50,9 +50,11 @@ public:
      * You can generate a JSON file using {@link Clipboard.exportEntities}.
      * @function Clipboard.importEntities
      * @param {string} filename Path and name of file to import.
+     * @param {boolean} does the ResourceRequestObserver observe this request?
+     * @param {number} optional internal id of object causing this import.
      * @returns {boolean} <code>true</code> if the import was successful, otherwise <code>false</code>.
      */
-    Q_INVOKABLE bool importEntities(const QString& filename);
+    Q_INVOKABLE bool importEntities(const QString& filename, const bool isObservable = true, const qint64 callerId = -1);
 
     /**jsdoc
      * Export the entities specified to a JSON file.
diff --git a/interface/src/ui/PreferencesDialog.cpp b/interface/src/ui/PreferencesDialog.cpp
index 5eccef5e9d..34d80f50cf 100644
--- a/interface/src/ui/PreferencesDialog.cpp
+++ b/interface/src/ui/PreferencesDialog.cpp
@@ -259,6 +259,39 @@ void setupPreferences() {
         auto preference = new CheckPreference(VR_MOVEMENT, "Show room boundaries while teleporting", getter, setter);
         preferences->addPreference(preference);
     }
+    {
+        auto getter = [myAvatar]()->int {
+            switch (myAvatar->getUserRecenterModel()) {
+                case MyAvatar::SitStandModelType::Auto:
+                    default:
+                    return 0;
+                case MyAvatar::SitStandModelType::ForceSit:
+                    return 1;
+                case MyAvatar::SitStandModelType::DisableHMDLean:
+                    return 2;
+            }
+        };
+        auto setter = [myAvatar](int value) {
+            switch (value) {
+                case 0:
+                default:
+                    myAvatar->setUserRecenterModel(MyAvatar::SitStandModelType::Auto);
+                    break;
+                case 1:
+                    myAvatar->setUserRecenterModel(MyAvatar::SitStandModelType::ForceSit);
+                    break;
+                case 2:
+                    myAvatar->setUserRecenterModel(MyAvatar::SitStandModelType::DisableHMDLean);
+                    break;
+            }
+        };
+        auto preference = new RadioButtonsPreference(VR_MOVEMENT, "Auto / Force Sit / Disable Recenter", getter, setter);
+        QStringList items;
+        items << "Auto - turns on avatar leaning when standing in real world" << "Seated - disables all avatar leaning while sitting in real world" << "Disabled - allows avatar sitting on the floor [Experimental]";
+        preference->setHeading("Avatar leaning behavior");
+        preference->setItems(items);
+        preferences->addPreference(preference);
+    }
     {
         auto getter = [=]()->float { return myAvatar->getUserHeight(); };
         auto setter = [=](float value) { myAvatar->setUserHeight(value); };
diff --git a/interface/src/ui/overlays/Web3DOverlay.cpp b/interface/src/ui/overlays/Web3DOverlay.cpp
index 9d55c91ef3..084615cae2 100644
--- a/interface/src/ui/overlays/Web3DOverlay.cpp
+++ b/interface/src/ui/overlays/Web3DOverlay.cpp
@@ -59,6 +59,7 @@
 #include "raypick/PointerScriptingInterface.h"
 #include <display-plugins/CompositorHelper.h>
 #include "AboutUtil.h"
+#include "ResourceRequestObserver.h"
 
 static int MAX_WINDOW_SIZE = 4096;
 static const float METERS_TO_INCHES = 39.3701f;
@@ -269,6 +270,7 @@ void Web3DOverlay::setupQmlSurface(bool isTablet) {
         _webSurface->getSurfaceContext()->setContextProperty("Window", DependencyManager::get<WindowScriptingInterface>().data());
         _webSurface->getSurfaceContext()->setContextProperty("Reticle", qApp->getApplicationCompositor().getReticleInterface());
         _webSurface->getSurfaceContext()->setContextProperty("HiFiAbout", AboutUtil::getInstance());
+        _webSurface->getSurfaceContext()->setContextProperty("ResourceRequestObserver", DependencyManager::get<ResourceRequestObserver>().data());
 
         // Override min fps for tablet UI, for silky smooth scrolling
         setMaxFPS(90);
diff --git a/libraries/animation/src/AnimClip.h b/libraries/animation/src/AnimClip.h
index eba361fd4c..92f4c01dcc 100644
--- a/libraries/animation/src/AnimClip.h
+++ b/libraries/animation/src/AnimClip.h
@@ -51,6 +51,8 @@ public:
     bool getMirrorFlag() const { return _mirrorFlag; }
     void setMirrorFlag(bool mirrorFlag) { _mirrorFlag = mirrorFlag; }
 
+    float getFrame() const { return _frame; }
+
     void loadURL(const QString& url);
 protected:
 
diff --git a/libraries/animation/src/Rig.cpp b/libraries/animation/src/Rig.cpp
index 341b554949..83d375b55a 100644
--- a/libraries/animation/src/Rig.cpp
+++ b/libraries/animation/src/Rig.cpp
@@ -31,6 +31,7 @@
 #include "AnimSkeleton.h"
 #include "AnimUtil.h"
 #include "IKTarget.h"
+#include "PathUtils.h"
 
 
 static int nextRigId = 1;
@@ -133,6 +134,30 @@ void Rig::overrideAnimation(const QString& url, float fps, bool loop, float firs
     _animVars.set("userAnimB", clipNodeEnum == UserAnimState::B);
 }
 
+void Rig::triggerNetworkAnimation(const QString& animName) {
+    _networkVars.set("idleAnim", false);
+    _networkVars.set("preTransitAnim", false);
+    _networkVars.set("transitAnim", false);
+    _networkVars.set("postTransitAnim", false);
+    _sendNetworkNode = true;
+
+    if (animName == "idleAnim") {
+        _networkVars.set("idleAnim", true);
+        _networkAnimState.clipNodeEnum = NetworkAnimState::Idle;
+        _sendNetworkNode = false;
+    } else if (animName == "preTransitAnim") {
+        _networkVars.set("preTransitAnim", true);
+        _networkAnimState.clipNodeEnum = NetworkAnimState::PreTransit;
+    } else if (animName == "transitAnim") {
+        _networkVars.set("transitAnim", true);
+        _networkAnimState.clipNodeEnum = NetworkAnimState::Transit;
+    } else if (animName == "postTransitAnim") {
+        _networkVars.set("postTransitAnim", true);
+        _networkAnimState.clipNodeEnum = NetworkAnimState::PostTransit;
+    }
+    
+}
+
 void Rig::restoreAnimation() {
     if (_userAnimState.clipNodeEnum != UserAnimState::None) {
         _userAnimState.clipNodeEnum = UserAnimState::None;
@@ -144,6 +169,16 @@ void Rig::restoreAnimation() {
     }
 }
 
+void Rig::restoreNetworkAnimation() {
+    if (_networkAnimState.clipNodeEnum != NetworkAnimState::Idle) {
+        _networkAnimState.clipNodeEnum = NetworkAnimState::Idle;
+        _networkVars.set("idleAnim", true);
+        _networkVars.set("preTransitAnim", false);
+        _networkVars.set("transitAnim", false);
+        _networkVars.set("postTransitAnim", false);
+    }
+}
+
 QStringList Rig::getAnimationRoles() const {
     if (_animNode) {
         QStringList list;
@@ -208,11 +243,17 @@ void Rig::restoreRoleAnimation(const QString& role) {
 void Rig::destroyAnimGraph() {
     _animSkeleton.reset();
     _animLoader.reset();
+    _networkLoader.reset();
     _animNode.reset();
     _internalPoseSet._relativePoses.clear();
     _internalPoseSet._absolutePoses.clear();
     _internalPoseSet._overridePoses.clear();
     _internalPoseSet._overrideFlags.clear();
+    _networkNode.reset();
+    _networkPoseSet._relativePoses.clear();
+    _networkPoseSet._absolutePoses.clear();
+    _networkPoseSet._overridePoses.clear();
+    _networkPoseSet._overrideFlags.clear();
     _numOverrides = 0;
     _leftEyeJointChildren.clear();
     _rightEyeJointChildren.clear();
@@ -229,14 +270,24 @@ void Rig::initJointStates(const FBXGeometry& geometry, const glm::mat4& modelOff
 
     _internalPoseSet._relativePoses.clear();
     _internalPoseSet._relativePoses = _animSkeleton->getRelativeDefaultPoses();
+    _networkPoseSet._relativePoses.clear();
+    _networkPoseSet._relativePoses = _animSkeleton->getRelativeDefaultPoses();
 
     buildAbsoluteRigPoses(_internalPoseSet._relativePoses, _internalPoseSet._absolutePoses);
+    buildAbsoluteRigPoses(_networkPoseSet._relativePoses, _networkPoseSet._absolutePoses);
 
     _internalPoseSet._overridePoses.clear();
     _internalPoseSet._overridePoses = _animSkeleton->getRelativeDefaultPoses();
 
     _internalPoseSet._overrideFlags.clear();
     _internalPoseSet._overrideFlags.resize(_animSkeleton->getNumJoints(), false);
+    
+    _networkPoseSet._overridePoses.clear();
+    _networkPoseSet._overridePoses = _animSkeleton->getRelativeDefaultPoses();
+    
+    _networkPoseSet._overrideFlags.clear();
+    _networkPoseSet._overrideFlags.resize(_animSkeleton->getNumJoints(), false);
+
     _numOverrides = 0;
 
     buildAbsoluteRigPoses(_animSkeleton->getRelativeDefaultPoses(), _absoluteDefaultPoses);
@@ -270,6 +321,18 @@ void Rig::reset(const FBXGeometry& geometry) {
 
     _internalPoseSet._overrideFlags.clear();
     _internalPoseSet._overrideFlags.resize(_animSkeleton->getNumJoints(), false);
+
+    _networkPoseSet._relativePoses.clear();
+    _networkPoseSet._relativePoses = _animSkeleton->getRelativeDefaultPoses();
+
+    buildAbsoluteRigPoses(_networkPoseSet._relativePoses, _networkPoseSet._absolutePoses);
+
+    _networkPoseSet._overridePoses.clear();
+    _networkPoseSet._overridePoses = _animSkeleton->getRelativeDefaultPoses();
+
+    _networkPoseSet._overrideFlags.clear();
+    _networkPoseSet._overrideFlags.resize(_animSkeleton->getNumJoints(), false);
+
     _numOverrides = 0;
 
     buildAbsoluteRigPoses(_animSkeleton->getRelativeDefaultPoses(), _absoluteDefaultPoses);
@@ -1049,26 +1112,56 @@ void Rig::updateAnimations(float deltaTime, const glm::mat4& rootTransform, cons
 
         updateAnimationStateHandlers();
         _animVars.setRigToGeometryTransform(_rigToGeometryTransform);
-
+        if (_networkNode) {
+            _networkVars.setRigToGeometryTransform(_rigToGeometryTransform);
+        }
         AnimContext context(_enableDebugDrawIKTargets, _enableDebugDrawIKConstraints, _enableDebugDrawIKChains,
                             getGeometryToRigTransform(), rigToWorldTransform);
 
         // evaluate the animation
         AnimVariantMap triggersOut;
-
+        AnimVariantMap networkTriggersOut;
         _internalPoseSet._relativePoses = _animNode->evaluate(_animVars, context, deltaTime, triggersOut);
+        if (_networkNode) {
+            _networkPoseSet._relativePoses = _networkNode->evaluate(_networkVars, context, deltaTime, networkTriggersOut);
+            const float NETWORK_ANIMATION_BLEND_FRAMES = 6.0f;
+            float alpha = 1.0f;
+            std::shared_ptr<AnimClip> clip;
+            if (_networkAnimState.clipNodeEnum == NetworkAnimState::PreTransit) {
+                clip = std::dynamic_pointer_cast<AnimClip>(_networkNode->findByName("preTransitAnim"));
+                if (clip) {
+                    alpha = (clip->getFrame() - clip->getStartFrame()) / NETWORK_ANIMATION_BLEND_FRAMES;
+                }
+            } else if (_networkAnimState.clipNodeEnum == NetworkAnimState::PostTransit) {
+                clip = std::dynamic_pointer_cast<AnimClip>(_networkNode->findByName("postTransitAnim"));
+                if (clip) {
+                    alpha = (clip->getEndFrame() - clip->getFrame()) / NETWORK_ANIMATION_BLEND_FRAMES;
+                }
+            }
+            if (_sendNetworkNode) {
+                for (size_t i = 0; i < _networkPoseSet._relativePoses.size(); i++) {
+                    _networkPoseSet._relativePoses[i].blend(_internalPoseSet._relativePoses[i], (alpha > 1.0f ? 1.0f : alpha));
+                }
+            }
+        }
         if ((int)_internalPoseSet._relativePoses.size() != _animSkeleton->getNumJoints()) {
             // animations haven't fully loaded yet.
             _internalPoseSet._relativePoses = _animSkeleton->getRelativeDefaultPoses();
         }
+        if ((int)_networkPoseSet._relativePoses.size() != _animSkeleton->getNumJoints()) {
+            // animations haven't fully loaded yet.
+            _networkPoseSet._relativePoses = _animSkeleton->getRelativeDefaultPoses();
+        }
         _lastAnimVars = _animVars;
         _animVars.clearTriggers();
         _animVars = triggersOut;
+        _networkVars.clearTriggers();
+        _networkVars = networkTriggersOut;
         _lastContext = context;
     }
     applyOverridePoses();
     buildAbsoluteRigPoses(_internalPoseSet._relativePoses, _internalPoseSet._absolutePoses);
-
+    buildAbsoluteRigPoses(_networkPoseSet._relativePoses, _networkPoseSet._absolutePoses);
     // copy internal poses to external poses
     {
         QWriteLocker writeLock(&_externalPoseSetLock);
@@ -1672,11 +1765,14 @@ void Rig::initAnimGraph(const QUrl& url) {
         _animGraphURL = url;
 
         _animNode.reset();
+        _networkNode.reset();
 
         // load the anim graph
         _animLoader.reset(new AnimNodeLoader(url));
+        auto networkUrl = PathUtils::resourcesUrl("avatar/network-animation.json");
+        _networkLoader.reset(new AnimNodeLoader(networkUrl));
         std::weak_ptr<AnimSkeleton> weakSkeletonPtr = _animSkeleton;
-        connect(_animLoader.get(), &AnimNodeLoader::success, [this, weakSkeletonPtr](AnimNode::Pointer nodeIn) {
+        connect(_animLoader.get(), &AnimNodeLoader::success, [this, weakSkeletonPtr, url](AnimNode::Pointer nodeIn) {
             _animNode = nodeIn;
 
             // abort load if the previous skeleton was deleted.
@@ -1703,7 +1799,33 @@ void Rig::initAnimGraph(const QUrl& url) {
             emit onLoadComplete();
         });
         connect(_animLoader.get(), &AnimNodeLoader::error, [url](int error, QString str) {
-            qCCritical(animation) << "Error loading" << url.toDisplayString() << "code = " << error << "str =" << str;
+            qCritical(animation) << "Error loading" << url.toDisplayString() << "code = " << error << "str =" << str;
+        });
+
+        connect(_networkLoader.get(), &AnimNodeLoader::success, [this, weakSkeletonPtr, networkUrl](AnimNode::Pointer nodeIn) {
+            _networkNode = nodeIn;
+            // abort load if the previous skeleton was deleted.
+            auto sharedSkeletonPtr = weakSkeletonPtr.lock();
+            if (!sharedSkeletonPtr) {
+                return;
+            }
+            _networkNode->setSkeleton(sharedSkeletonPtr);
+            if (_networkAnimState.clipNodeEnum != NetworkAnimState::Idle) {
+                // restore the user animation we had before reset.
+                NetworkAnimState origState = _networkAnimState;
+                _networkAnimState = { NetworkAnimState::Idle, "", 30.0f, false, 0.0f, 0.0f };
+                if (_networkAnimState.clipNodeEnum == NetworkAnimState::PreTransit) {
+                    triggerNetworkAnimation("preTransitAnim");
+                } else if (_networkAnimState.clipNodeEnum == NetworkAnimState::Transit) {
+                    triggerNetworkAnimation("transitAnim");
+                } else if (_networkAnimState.clipNodeEnum == NetworkAnimState::PostTransit) {
+                    triggerNetworkAnimation("postTransitAnim");
+                }
+            }
+           
+        });
+        connect(_networkLoader.get(), &AnimNodeLoader::error, [networkUrl](int error, QString str) {
+            qCritical(animation) << "Error loading" << networkUrl.toDisplayString() << "code = " << error << "str =" << str;
         });
     }
 }
@@ -1782,13 +1904,13 @@ void Rig::copyJointsIntoJointData(QVector<JointData>& jointDataVec) const {
         if (isIndexValid(i)) {
             // rotations are in absolute rig frame.
             glm::quat defaultAbsRot = geometryToRigPose.rot() * _animSkeleton->getAbsoluteDefaultPose(i).rot();
-            data.rotation = _internalPoseSet._absolutePoses[i].rot();
+            data.rotation = !_sendNetworkNode ? _internalPoseSet._absolutePoses[i].rot() : _networkPoseSet._absolutePoses[i].rot();
             data.rotationIsDefaultPose = isEqual(data.rotation, defaultAbsRot);
 
             // translations are in relative frame but scaled so that they are in meters,
             // instead of geometry units.
             glm::vec3 defaultRelTrans = _geometryOffset.scale() * _animSkeleton->getRelativeDefaultPose(i).trans();
-            data.translation = _geometryOffset.scale() * _internalPoseSet._relativePoses[i].trans();
+            data.translation = _geometryOffset.scale() * (!_sendNetworkNode ? _internalPoseSet._relativePoses[i].trans() : _networkPoseSet._relativePoses[i].trans());
             data.translationIsDefaultPose = isEqual(data.translation, defaultRelTrans);
         } else {
             data.translationIsDefaultPose = true;
diff --git a/libraries/animation/src/Rig.h b/libraries/animation/src/Rig.h
index ed0b70d4b6..7efc58fb4d 100644
--- a/libraries/animation/src/Rig.h
+++ b/libraries/animation/src/Rig.h
@@ -113,7 +113,10 @@ public:
     void destroyAnimGraph();
 
     void overrideAnimation(const QString& url, float fps, bool loop, float firstFrame, float lastFrame);
+    void triggerNetworkAnimation(const QString& animName);
     void restoreAnimation();
+    void restoreNetworkAnimation();
+
     QStringList getAnimationRoles() const;
     void overrideRoleAnimation(const QString& role, const QString& url, float fps, bool loop, float firstFrame, float lastFrame);
     void restoreRoleAnimation(const QString& role);
@@ -269,6 +272,7 @@ protected:
 
     // Only accessed by the main thread
     PoseSet _internalPoseSet;
+    PoseSet _networkPoseSet;
 
     // Copy of the _poseSet for external threads.
     PoseSet _externalPoseSet;
@@ -300,9 +304,12 @@ protected:
 
     QUrl _animGraphURL;
     std::shared_ptr<AnimNode> _animNode;
+    std::shared_ptr<AnimNode> _networkNode;
     std::shared_ptr<AnimSkeleton> _animSkeleton;
     std::unique_ptr<AnimNodeLoader> _animLoader;
+    std::unique_ptr<AnimNodeLoader> _networkLoader;
     AnimVariantMap _animVars;
+    AnimVariantMap _networkVars;
 
     enum class RigRole {
         Idle = 0,
@@ -315,6 +322,25 @@ protected:
     RigRole _state { RigRole::Idle };
     RigRole _desiredState { RigRole::Idle };
     float _desiredStateAge { 0.0f };
+    
+    struct NetworkAnimState {
+        enum ClipNodeEnum {
+            Idle = 0,
+            PreTransit,
+            Transit,
+            PostTransit
+        };
+        NetworkAnimState() : clipNodeEnum(NetworkAnimState::Idle) {}
+        NetworkAnimState(ClipNodeEnum clipNodeEnumIn, const QString& urlIn, float fpsIn, bool loopIn, float firstFrameIn, float lastFrameIn) :
+            clipNodeEnum(clipNodeEnumIn), url(urlIn), fps(fpsIn), loop(loopIn), firstFrame(firstFrameIn), lastFrame(lastFrameIn) {}
+
+        ClipNodeEnum clipNodeEnum;
+        QString url;
+        float fps;
+        bool loop;
+        float firstFrame;
+        float lastFrame;
+    };
 
     struct UserAnimState {
         enum ClipNodeEnum {
@@ -349,6 +375,7 @@ protected:
     };
 
     UserAnimState _userAnimState;
+    NetworkAnimState _networkAnimState;
     std::map<QString, RoleAnimState> _roleAnimStates;
 
     float _leftHandOverlayAlpha { 0.0f };
@@ -382,6 +409,7 @@ protected:
 
     int _rigId;
     bool _headEnabled { false };
+    bool _sendNetworkNode { false };
 
     AnimContext _lastContext;
     AnimVariantMap _lastAnimVars;
diff --git a/libraries/avatars-renderer/src/avatars-renderer/Avatar.cpp b/libraries/avatars-renderer/src/avatars-renderer/Avatar.cpp
index 6770cd7f96..4a06a5252a 100644
--- a/libraries/avatars-renderer/src/avatars-renderer/Avatar.cpp
+++ b/libraries/avatars-renderer/src/avatars-renderer/Avatar.cpp
@@ -114,27 +114,29 @@ void Avatar::setShowNamesAboveHeads(bool show) {
 }
 
 AvatarTransit::Status AvatarTransit::update(float deltaTime, const glm::vec3& avatarPosition, const AvatarTransit::TransitConfig& config) {
-    glm::vec3 currentPosition = _isTransiting ? _currentPosition : avatarPosition;
-    float oneFrameDistance = glm::length(currentPosition - _lastPosition);
-    const float MAX_TRANSIT_DISTANCE = 30.0f;
-    float scaledMaxTransitDistance = MAX_TRANSIT_DISTANCE * _scale;
-    if (oneFrameDistance > config._triggerDistance && !_isTransiting) {
-        if (oneFrameDistance < scaledMaxTransitDistance) {
-            start(deltaTime, _lastPosition, currentPosition, config);
+    float oneFrameDistance = _isActive ? glm::length(avatarPosition - _endPosition) : glm::length(avatarPosition - _lastPosition);
+    if (oneFrameDistance > (config._minTriggerDistance * _scale)) {
+        if (oneFrameDistance < (config._maxTriggerDistance * _scale)) {
+            start(deltaTime, _lastPosition, avatarPosition, config);
         } else {
-            _lastPosition = currentPosition;
-            return Status::ABORT_TRANSIT;
+            _lastPosition = avatarPosition;
+            _status = Status::ABORT_TRANSIT;
         }        
     }
-    _lastPosition = currentPosition;
+    _lastPosition = avatarPosition;
     _status = updatePosition(deltaTime);
+
+    if (_isActive && oneFrameDistance > (config._abortDistance * _scale) && _status == Status::POST_TRANSIT) {
+        reset();
+        _status = Status::ENDED;
+    }
     return _status;
 }
 
 void AvatarTransit::reset() {
     _lastPosition = _endPosition;
     _currentPosition = _endPosition;
-    _isTransiting = false;
+    _isActive = false;
 }
 void AvatarTransit::start(float deltaTime, const glm::vec3& startPosition, const glm::vec3& endPosition, const AvatarTransit::TransitConfig& config) {
     _startPosition = startPosition;
@@ -143,12 +145,14 @@ void AvatarTransit::start(float deltaTime, const glm::vec3& startPosition, const
     _transitLine = endPosition - startPosition;
     _totalDistance = glm::length(_transitLine);
     _easeType = config._easeType;
-    const float REFERENCE_FRAMES_PER_SECOND = 30.0f;
-        
+
+    _preTransitTime = AVATAR_PRE_TRANSIT_FRAME_COUNT / AVATAR_TRANSIT_FRAMES_PER_SECOND;
+    _postTransitTime = AVATAR_POST_TRANSIT_FRAME_COUNT / AVATAR_TRANSIT_FRAMES_PER_SECOND;
     int transitFrames = (!config._isDistanceBased) ? config._totalFrames : config._framesPerMeter * _totalDistance;
-    _totalTime = (float)transitFrames / REFERENCE_FRAMES_PER_SECOND;
-    _currentTime = 0.0f;
-    _isTransiting = true;
+    _transitTime = (float)transitFrames / AVATAR_TRANSIT_FRAMES_PER_SECOND;
+    _totalTime = _transitTime + _preTransitTime + _postTransitTime;
+    _currentTime = _isActive ? _preTransitTime : 0.0f;
+    _isActive = true;
 }
 
 float AvatarTransit::getEaseValue(AvatarTransit::EaseType type, float value) {
@@ -171,31 +175,37 @@ float AvatarTransit::getEaseValue(AvatarTransit::EaseType type, float value) {
 
 AvatarTransit::Status AvatarTransit::updatePosition(float deltaTime) {
     Status status = Status::IDLE;
-    if (_isTransiting) {
+    if (_isActive) {
         float nextTime = _currentTime + deltaTime;
-        if (nextTime >= _totalTime) {
-            _currentPosition = _endPosition;
-            _isTransiting = false;
-            status = Status::END_TRANSIT;
-        } else {
+        if (nextTime < _preTransitTime) {
+            _currentPosition = _startPosition;
+            status = Status::PRE_TRANSIT;
             if (_currentTime == 0) {
+                status = Status::STARTED;
+            } 
+        } else if (nextTime < _totalTime - _postTransitTime){
+            status = Status::TRANSITING;
+            if (_currentTime <= _preTransitTime) {
                 status = Status::START_TRANSIT;
             } else {
-                status = Status::TRANSITING;
+                float percentageIntoTransit = (nextTime - _preTransitTime) / _transitTime;
+                _currentPosition = _startPosition + getEaseValue(_easeType, percentageIntoTransit) * _transitLine;
+            }
+        } else {
+            status = Status::POST_TRANSIT;
+            _currentPosition = _endPosition;
+            if (nextTime >= _totalTime) {
+                _isActive = false;
+                status = Status::ENDED;
+            } else if (_currentTime < _totalTime - _postTransitTime) {
+                status = Status::END_TRANSIT;
             }
-            float percentageIntoTransit = nextTime / _totalTime;
-            _currentPosition = _startPosition + getEaseValue(_easeType, percentageIntoTransit) * _transitLine;
         }
         _currentTime = nextTime;
     }
     return status;
 }
 
-bool AvatarTransit::getNextPosition(glm::vec3& nextPosition) {
-    nextPosition = _currentPosition;
-    return _isTransiting;
-}
-
 Avatar::Avatar(QThread* thread) :
     _voiceSphereID(GeometryCache::UNKNOWN_ID)
 {
@@ -536,16 +546,10 @@ void Avatar::relayJointDataToChildren() {
 
 void Avatar::simulate(float deltaTime, bool inView) {
     PROFILE_RANGE(simulation, "simulate");
-    
-    if (_transit.isTransiting()) {
-        glm::vec3 nextPosition;
-        if (_transit.getNextPosition(nextPosition)) {
-            _globalPosition = nextPosition;
-            _globalPositionChanged = usecTimestampNow();
-            if (!hasParent()) {
-                setLocalPosition(nextPosition);
-            }
-        }
+
+    _globalPosition = _transit.isActive() ? _transit.getCurrentPosition() : _serverPosition;
+    if (!hasParent()) {
+        setLocalPosition(_globalPosition);
     }
     
     _simulationRate.increment();
@@ -558,7 +562,7 @@ void Avatar::simulate(float deltaTime, bool inView) {
         PROFILE_RANGE(simulation, "updateJoints");
         if (inView) {
             Head* head = getHead();
-            if (_hasNewJointData || _transit.isTransiting()) {
+            if (_hasNewJointData || _transit.isActive()) {
                 _skeletonModel->getRig().copyJointsFromJointData(_jointData);
                 glm::mat4 rootTransform = glm::scale(_skeletonModel->getScale()) * glm::translate(_skeletonModel->getOffset());
                 _skeletonModel->getRig().computeExternalPoses(rootTransform);
@@ -1731,6 +1735,7 @@ void Avatar::getCapsule(glm::vec3& start, glm::vec3& end, float& radius) {
 
 glm::vec3 Avatar::getWorldFeetPosition() {
     ShapeInfo shapeInfo;
+
     computeShapeInfo(shapeInfo);
     glm::vec3 halfExtents = shapeInfo.getHalfExtents(); // x = radius, y = halfHeight
     glm::vec3 localFeet(0.0f, shapeInfo.getOffset().y - halfExtents.y - halfExtents.x, 0.0f);
@@ -1994,22 +1999,12 @@ float Avatar::getUnscaledEyeHeightFromSkeleton() const {
     }
 }
 
-AvatarTransit::Status Avatar::updateTransit(float deltaTime, const glm::vec3& avatarPosition, const AvatarTransit::TransitConfig& config) {
+AvatarTransit::Status Avatar::updateTransit(float deltaTime, const glm::vec3& avatarPosition, float avatarScale, const AvatarTransit::TransitConfig& config) {
     std::lock_guard<std::mutex> lock(_transitLock);
+    _transit.setScale(avatarScale);
     return _transit.update(deltaTime, avatarPosition, config);
 }
 
-void Avatar::setTransitScale(float scale) {
-    std::lock_guard<std::mutex> lock(_transitLock);
-    return _transit.setScale(scale);
-}
-
-void Avatar::overrideNextPackagePositionData(const glm::vec3& position) {
-    std::lock_guard<std::mutex> lock(_transitLock);
-    _overrideGlobalPosition = true;
-    _globalPositionOverride = position;
-}
-
 void Avatar::addMaterial(graphics::MaterialLayer material, const std::string& parentMaterialName) {
     std::lock_guard<std::mutex> lock(_materialsLock);
     _materials[parentMaterialName].push(material);
diff --git a/libraries/avatars-renderer/src/avatars-renderer/Avatar.h b/libraries/avatars-renderer/src/avatars-renderer/Avatar.h
index 3f4cf7b8c2..ca063a7026 100644
--- a/libraries/avatars-renderer/src/avatars-renderer/Avatar.h
+++ b/libraries/avatars-renderer/src/avatars-renderer/Avatar.h
@@ -56,9 +56,13 @@ class AvatarTransit {
 public:
     enum Status {
         IDLE = 0,
+        STARTED,
+        PRE_TRANSIT,
         START_TRANSIT,
         TRANSITING,
         END_TRANSIT,
+        POST_TRANSIT,
+        ENDED,
         ABORT_TRANSIT
     };
 
@@ -72,20 +76,20 @@ public:
     struct TransitConfig {
         TransitConfig() {};
         int _totalFrames { 0 };
-        int _framesPerMeter { 0 };
+        float _framesPerMeter { 0.0f };
         bool _isDistanceBased { false };
-        float _triggerDistance { 0 };
+        float _minTriggerDistance { 0.0f };
+        float _maxTriggerDistance { 0.0f };
+        float _abortDistance{ 0.0f };
         EaseType _easeType { EaseType::EASE_OUT };
     };
 
     AvatarTransit() {};
     Status update(float deltaTime, const glm::vec3& avatarPosition, const TransitConfig& config);
     Status getStatus() { return _status; }
-    bool isTransiting() { return _isTransiting; }
+    bool isActive() { return _isActive; }
     glm::vec3 getCurrentPosition() { return _currentPosition; }
-    bool getNextPosition(glm::vec3& nextPosition);
     glm::vec3 getEndPosition() { return _endPosition; }
-    float getTransitTime() { return _totalTime; }
     void setScale(float scale) { _scale = scale; }
     void reset();
 
@@ -93,7 +97,7 @@ private:
     Status updatePosition(float deltaTime);
     void start(float deltaTime, const glm::vec3& startPosition, const glm::vec3& endPosition, const TransitConfig& config);
     float getEaseValue(AvatarTransit::EaseType type, float value);
-    bool _isTransiting { false };
+    bool _isActive { false };
 
     glm::vec3 _startPosition;
     glm::vec3 _endPosition;
@@ -103,7 +107,10 @@ private:
 
     glm::vec3 _transitLine;
     float _totalDistance { 0.0f };
+    float _preTransitTime { 0.0f };
     float _totalTime { 0.0f };
+    float _transitTime { 0.0f };
+    float _postTransitTime { 0.0f };
     float _currentTime { 0.0f };
     EaseType _easeType { EaseType::EASE_OUT };
     Status _status { Status::IDLE };
@@ -431,11 +438,7 @@ public:
     virtual scriptable::ScriptableModelBase getScriptableModel() override;
 
     std::shared_ptr<AvatarTransit> getTransit() { return std::make_shared<AvatarTransit>(_transit); };
-
-    AvatarTransit::Status updateTransit(float deltaTime, const glm::vec3& avatarPosition, const AvatarTransit::TransitConfig& config);
-    void setTransitScale(float scale);
-
-    void overrideNextPackagePositionData(const glm::vec3& position);
+    AvatarTransit::Status updateTransit(float deltaTime, const glm::vec3& avatarPosition, float avatarScale, const AvatarTransit::TransitConfig& config);
 
 signals:
     void targetScaleChanged(float targetScale);
diff --git a/libraries/avatars/src/AvatarData.cpp b/libraries/avatars/src/AvatarData.cpp
index e1d2c58e81..e08f7fb6f8 100644
--- a/libraries/avatars/src/AvatarData.cpp
+++ b/libraries/avatars/src/AvatarData.cpp
@@ -44,6 +44,7 @@
 #include "AvatarLogging.h"
 #include "AvatarTraits.h"
 #include "ClientTraitsHandler.h"
+#include "ResourceRequestObserver.h"
 
 //#define WANT_DEBUG
 
@@ -938,20 +939,22 @@ int AvatarData::parseDataFromBuffer(const QByteArray& buffer) {
             offset = glm::vec3(row * SPACE_BETWEEN_AVATARS, 0.0f, col * SPACE_BETWEEN_AVATARS);
         }
 
-        auto newValue = glm::vec3(data->globalPosition[0], data->globalPosition[1], data->globalPosition[2]) + offset;
-        if (_globalPosition != newValue) {
-            _globalPosition = newValue;
+        _serverPosition = glm::vec3(data->globalPosition[0], data->globalPosition[1], data->globalPosition[2]) + offset;
+        auto oneStepDistance = glm::length(_globalPosition - _serverPosition);
+        if (oneStepDistance <= AVATAR_TRANSIT_MIN_TRIGGER_DISTANCE || oneStepDistance >= AVATAR_TRANSIT_MAX_TRIGGER_DISTANCE) {
+            _globalPosition = _serverPosition;
+            // if we don't have a parent, make sure to also set our local position
+            if (!hasParent()) {
+                setLocalPosition(_serverPosition);
+            }
+        }
+        if (_globalPosition != _serverPosition) {
             _globalPositionChanged = now;
         }
         sourceBuffer += sizeof(AvatarDataPacket::AvatarGlobalPosition);
         int numBytesRead = sourceBuffer - startSection;
         _globalPositionRate.increment(numBytesRead);
         _globalPositionUpdateRate.increment();
-
-        // if we don't have a parent, make sure to also set our local position
-        if (!hasParent()) {
-            setLocalPosition(newValue);
-        }
     }
 
     if (hasAvatarBoundingBox) {
@@ -2167,10 +2170,6 @@ void AvatarData::sendAvatarDataPacket(bool sendAll) {
         }
     }
 
-    if (_overrideGlobalPosition) {
-        _overrideGlobalPosition = false;
-    }
-
     doneEncoding(cullSmallData);
 
     static AvatarDataSequenceNumber sequenceNumber = 0;
@@ -2214,11 +2213,21 @@ void AvatarData::updateJointMappings() {
     }
 
     if (_skeletonModelURL.fileName().toLower().endsWith(".fst")) {
+        ////
+        // TODO: Should we rely upon HTTPResourceRequest for ResourceRequestObserver instead?
+        // HTTPResourceRequest::doSend() covers all of the following and
+        // then some. It doesn't cover the connect() call, so we may
+        // want to add a HTTPResourceRequest::doSend() method that does
+        // connects.
         QNetworkAccessManager& networkAccessManager = NetworkAccessManager::getInstance();
         QNetworkRequest networkRequest = QNetworkRequest(_skeletonModelURL);
         networkRequest.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);
         networkRequest.setHeader(QNetworkRequest::UserAgentHeader, HIGH_FIDELITY_USER_AGENT);
+        DependencyManager::get<ResourceRequestObserver>()->update(
+            _skeletonModelURL, -1, "AvatarData::updateJointMappings");
         QNetworkReply* networkReply = networkAccessManager.get(networkRequest);
+        //
+        ////
         connect(networkReply, &QNetworkReply::finished, this, &AvatarData::setJointMappingsFromNetworkReply);
     }
 }
diff --git a/libraries/avatars/src/AvatarData.h b/libraries/avatars/src/AvatarData.h
index 1f5b7093b9..8533f142bb 100644
--- a/libraries/avatars/src/AvatarData.h
+++ b/libraries/avatars/src/AvatarData.h
@@ -338,6 +338,17 @@ const float AVATAR_DISTANCE_LEVEL_5 = 200.0f; // meters
 // This is the start location in the Sandbox (xyz: 6270, 211, 6000).
 const glm::vec3 START_LOCATION(6270, 211, 6000);
 
+// Avatar Transit Constants
+const float AVATAR_TRANSIT_MIN_TRIGGER_DISTANCE = 1.0f;
+const float AVATAR_TRANSIT_MAX_TRIGGER_DISTANCE = 30.0f;
+const int AVATAR_TRANSIT_FRAME_COUNT = 11;
+const float AVATAR_TRANSIT_FRAMES_PER_METER = 0.5f;
+const float AVATAR_TRANSIT_ABORT_DISTANCE = 0.1f;
+const bool AVATAR_TRANSIT_DISTANCE_BASED = true;
+const float AVATAR_TRANSIT_FRAMES_PER_SECOND = 30.0f;
+const float AVATAR_PRE_TRANSIT_FRAME_COUNT = 10.0f;
+const float AVATAR_POST_TRANSIT_FRAME_COUNT = 27.0f;
+
 enum KeyState {
     NO_KEY_DOWN = 0,
     INSERT_KEY_DOWN,
@@ -1393,8 +1404,7 @@ protected:
     // where Entities are located.  This is currently only used by the mixer to decide how often to send
     // updates about one avatar to another.
     glm::vec3 _globalPosition { 0, 0, 0 };
-    glm::vec3 _globalPositionOverride { 0, 0, 0 };
-    bool _overrideGlobalPosition { false };
+    glm::vec3 _serverPosition { 0, 0, 0 };
 
     quint64 _globalPositionChanged { 0 };
     quint64 _avatarBoundingBoxChanged { 0 };
diff --git a/libraries/avatars/src/ClientTraitsHandler.cpp b/libraries/avatars/src/ClientTraitsHandler.cpp
index a06b53da7c..f8247d9e52 100644
--- a/libraries/avatars/src/ClientTraitsHandler.cpp
+++ b/libraries/avatars/src/ClientTraitsHandler.cpp
@@ -31,7 +31,27 @@ ClientTraitsHandler::ClientTraitsHandler(AvatarData* owningAvatar) :
     nodeList->getPacketReceiver().registerListener(PacketType::SetAvatarTraits, this, "processTraitOverride");
 }
 
+void ClientTraitsHandler::markTraitUpdated(AvatarTraits::TraitType updatedTrait) {
+    Lock lock(_traitLock);
+    _traitStatuses[updatedTrait] = Updated;
+    _hasChangedTraits = true;
+}
+
+void ClientTraitsHandler::markInstancedTraitUpdated(AvatarTraits::TraitType traitType, QUuid updatedInstanceID) {
+    Lock lock(_traitLock);
+    _traitStatuses.instanceInsert(traitType, updatedInstanceID, Updated);
+    _hasChangedTraits = true;
+}
+
+void ClientTraitsHandler::markInstancedTraitDeleted(AvatarTraits::TraitType traitType, QUuid deleteInstanceID) {
+    Lock lock(_traitLock);
+    _traitStatuses.instanceInsert(traitType, deleteInstanceID, Deleted);
+    _hasChangedTraits = true;
+}
+
 void ClientTraitsHandler::resetForNewMixer() {
+    Lock lock(_traitLock);
+
     // re-set the current version to 0
     _currentTraitVersion = AvatarTraits::DEFAULT_TRAIT_VERSION;
 
@@ -46,6 +66,8 @@ void ClientTraitsHandler::resetForNewMixer() {
 }
 
 void ClientTraitsHandler::sendChangedTraitsToMixer() {
+    Lock lock(_traitLock);
+
     if (hasChangedTraits() || _shouldPerformInitialSend) {
         // we have at least one changed trait to send
 
@@ -113,6 +135,7 @@ void ClientTraitsHandler::sendChangedTraitsToMixer() {
 
 void ClientTraitsHandler::processTraitOverride(QSharedPointer<ReceivedMessage> message, SharedNodePointer sendingNode) {
     if (sendingNode->getType() == NodeType::AvatarMixer) {
+        Lock lock(_traitLock);
         while (message->getBytesLeftToRead()) {
             AvatarTraits::TraitType traitType;
             message->readPrimitive(&traitType);
diff --git a/libraries/avatars/src/ClientTraitsHandler.h b/libraries/avatars/src/ClientTraitsHandler.h
index 27ba58d46b..3900268101 100644
--- a/libraries/avatars/src/ClientTraitsHandler.h
+++ b/libraries/avatars/src/ClientTraitsHandler.h
@@ -26,14 +26,11 @@ public:
 
     void sendChangedTraitsToMixer();
 
-    bool hasChangedTraits() { return _hasChangedTraits; }
+    bool hasChangedTraits() const { return _hasChangedTraits; }
 
-    void markTraitUpdated(AvatarTraits::TraitType updatedTrait)
-        { _traitStatuses[updatedTrait] = Updated; _hasChangedTraits = true; }
-    void markInstancedTraitUpdated(AvatarTraits::TraitType traitType, QUuid updatedInstanceID)
-        { _traitStatuses.instanceInsert(traitType, updatedInstanceID, Updated); _hasChangedTraits = true; }
-    void markInstancedTraitDeleted(AvatarTraits::TraitType traitType, QUuid deleteInstanceID)
-        { _traitStatuses.instanceInsert(traitType, deleteInstanceID, Deleted); _hasChangedTraits = true; }
+    void markTraitUpdated(AvatarTraits::TraitType updatedTrait);
+    void markInstancedTraitUpdated(AvatarTraits::TraitType traitType, QUuid updatedInstanceID);
+    void markInstancedTraitDeleted(AvatarTraits::TraitType traitType, QUuid deleteInstanceID);
 
     void resetForNewMixer();
 
@@ -41,17 +38,21 @@ public slots:
     void processTraitOverride(QSharedPointer<ReceivedMessage> message, SharedNodePointer sendingNode);
 
 private:
+    using Mutex = std::recursive_mutex;
+    using Lock = std::lock_guard<Mutex>;
+
     enum ClientTraitStatus {
         Unchanged,
         Updated,
         Deleted
     };
 
-    AvatarData* _owningAvatar;
+    AvatarData* const _owningAvatar;
 
+    Mutex _traitLock;
     AvatarTraits::AssociatedTraitValues<ClientTraitStatus, Unchanged> _traitStatuses;
-    AvatarTraits::TraitVersion _currentTraitVersion { AvatarTraits::DEFAULT_TRAIT_VERSION };
 
+    AvatarTraits::TraitVersion _currentTraitVersion { AvatarTraits::DEFAULT_TRAIT_VERSION };
     AvatarTraits::TraitVersion _currentSkeletonVersion { AvatarTraits::NULL_TRAIT_VERSION };
     
     bool _shouldPerformInitialSend { false };
diff --git a/libraries/entities/src/EntityEditFilters.cpp b/libraries/entities/src/EntityEditFilters.cpp
index 6f7e012bc4..4865c0ba1e 100644
--- a/libraries/entities/src/EntityEditFilters.cpp
+++ b/libraries/entities/src/EntityEditFilters.cpp
@@ -200,7 +200,8 @@ void EntityEditFilters::addFilter(EntityItemID entityID, QString filterURL) {
     _filterDataMap.insert(entityID, filterData);
     _lock.unlock();
    
-    auto scriptRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(this, scriptURL);
+    auto scriptRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        this, scriptURL, true, -1, "EntityEditFilters::addFilter");
     if (!scriptRequest) {
         qWarning() << "Could not create ResourceRequest for Entity Edit filter script at" << scriptURL.toString();
         scriptRequestFinished(entityID);
diff --git a/libraries/fbx/src/GLTFReader.cpp b/libraries/fbx/src/GLTFReader.cpp
index 317342b886..b93dc3541b 100644
--- a/libraries/fbx/src/GLTFReader.cpp
+++ b/libraries/fbx/src/GLTFReader.cpp
@@ -953,7 +953,8 @@ bool GLTFReader::doesResourceExist(const QString& url) {
 }
 
 std::tuple<bool, QByteArray> GLTFReader::requestData(QUrl& url) {
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, url);
+    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        nullptr, url, true, -1, "GLTFReader::requestData");
 
     if (!request) {
         return std::make_tuple(false, QByteArray());
diff --git a/libraries/fbx/src/OBJReader.cpp b/libraries/fbx/src/OBJReader.cpp
index c46a1e234c..7a2cbff497 100644
--- a/libraries/fbx/src/OBJReader.cpp
+++ b/libraries/fbx/src/OBJReader.cpp
@@ -443,7 +443,8 @@ void OBJReader::parseTextureLine(const QByteArray& textureLine, QByteArray& file
 }
 
 std::tuple<bool, QByteArray> requestData(QUrl& url) {
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, url);
+    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        nullptr, url, true, -1, "(OBJReader) requestData");
 
     if (!request) {
         return std::make_tuple(false, QByteArray());
diff --git a/libraries/model-networking/src/model-networking/TextureCache.cpp b/libraries/model-networking/src/model-networking/TextureCache.cpp
index e8aec5e60e..740af44591 100644
--- a/libraries/model-networking/src/model-networking/TextureCache.cpp
+++ b/libraries/model-networking/src/model-networking/TextureCache.cpp
@@ -456,7 +456,8 @@ void NetworkTexture::makeRequest() {
         // Add a fragment to the base url so we can identify the section of the ktx being requested when debugging
         // The actual requested url is _activeUrl and will not contain the fragment
         _url.setFragment("head");
-        _ktxHeaderRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(this, _activeUrl);
+        _ktxHeaderRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(
+            this, _activeUrl, true, -1, "NetworkTexture::makeRequest");
 
         if (!_ktxHeaderRequest) {
             qCDebug(networking).noquote() << "Failed to get request for" << _url.toDisplayString();
@@ -617,7 +618,8 @@ void NetworkTexture::startMipRangeRequest(uint16_t low, uint16_t high) {
 
     bool isHighMipRequest = low == NULL_MIP_LEVEL && high == NULL_MIP_LEVEL;
 
-    _ktxMipRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(this, _activeUrl);
+    _ktxMipRequest = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        this, _activeUrl, true, -1, "NetworkTexture::startMipRangeRequest");
 
     if (!_ktxMipRequest) {
         qCWarning(networking).noquote() << "Failed to get request for" << _url.toDisplayString();
diff --git a/libraries/networking/src/AssetResourceRequest.cpp b/libraries/networking/src/AssetResourceRequest.cpp
index 6d5bbb3ac5..6f5b13f98d 100644
--- a/libraries/networking/src/AssetResourceRequest.cpp
+++ b/libraries/networking/src/AssetResourceRequest.cpp
@@ -24,8 +24,12 @@
 
 static const int DOWNLOAD_PROGRESS_LOG_INTERVAL_SECONDS = 5;
 
-AssetResourceRequest::AssetResourceRequest(const QUrl& url) :
-    ResourceRequest(url)
+AssetResourceRequest::AssetResourceRequest(
+    const QUrl& url,
+    const bool isObservable,
+    const qint64 callerId,
+    const QString& extra) :
+    ResourceRequest(url, isObservable, callerId, extra)
 {
     _lastProgressDebug = p_high_resolution_clock::now() - std::chrono::seconds(DOWNLOAD_PROGRESS_LOG_INTERVAL_SECONDS);
 }
diff --git a/libraries/networking/src/AssetResourceRequest.h b/libraries/networking/src/AssetResourceRequest.h
index 2fe79040ca..07baca5416 100644
--- a/libraries/networking/src/AssetResourceRequest.h
+++ b/libraries/networking/src/AssetResourceRequest.h
@@ -22,7 +22,11 @@
 class AssetResourceRequest : public ResourceRequest {
     Q_OBJECT
 public:
-    AssetResourceRequest(const QUrl& url);
+    AssetResourceRequest(
+        const QUrl& url,
+        const bool isObservable = true,
+        const qint64 callerId = -1,
+        const QString& extra = "");
     virtual ~AssetResourceRequest() override;
 
 protected:
diff --git a/libraries/networking/src/AtpReply.cpp b/libraries/networking/src/AtpReply.cpp
index b2b7e8bee7..3ec9b23f5f 100644
--- a/libraries/networking/src/AtpReply.cpp
+++ b/libraries/networking/src/AtpReply.cpp
@@ -14,7 +14,8 @@
 #include "ResourceManager.h"
 
 AtpReply::AtpReply(const QUrl& url, QObject* parent) :
-    _resourceRequest(DependencyManager::get<ResourceManager>()->createResourceRequest(parent, url)) {
+    _resourceRequest(DependencyManager::get<ResourceManager>()->createResourceRequest(
+        parent, url, true, -1, "AtpReply::AtpReply")) {
     setOperation(QNetworkAccessManager::GetOperation);
 
     connect(_resourceRequest, &AssetResourceRequest::progress, this, &AtpReply::downloadProgress);
diff --git a/libraries/networking/src/FileResourceRequest.h b/libraries/networking/src/FileResourceRequest.h
index 547b754cb5..fa9a1617a9 100644
--- a/libraries/networking/src/FileResourceRequest.h
+++ b/libraries/networking/src/FileResourceRequest.h
@@ -19,7 +19,12 @@
 class FileResourceRequest : public ResourceRequest {
     Q_OBJECT
 public:
-    FileResourceRequest(const QUrl& url) : ResourceRequest(url) { }
+    FileResourceRequest(
+        const QUrl& url,
+        const bool isObservable = true,
+        const qint64 callerId = -1,
+        const QString& extra = ""
+    ) : ResourceRequest(url, isObservable, callerId, extra) { }
 
 protected:
     virtual void doSend() override;
diff --git a/libraries/networking/src/HTTPResourceRequest.h b/libraries/networking/src/HTTPResourceRequest.h
index cc628d8855..c725934f2f 100644
--- a/libraries/networking/src/HTTPResourceRequest.h
+++ b/libraries/networking/src/HTTPResourceRequest.h
@@ -21,7 +21,12 @@
 class HTTPResourceRequest : public ResourceRequest {
     Q_OBJECT
 public:
-    HTTPResourceRequest(const QUrl& url) : ResourceRequest(url) { }
+    HTTPResourceRequest(
+        const QUrl& url,
+        const bool isObservable = true,
+        const qint64 callerId = -1,
+        const QString& = ""
+    ) : ResourceRequest(url, isObservable, callerId) { }
     ~HTTPResourceRequest();
 
 protected:
diff --git a/libraries/networking/src/ResourceCache.cpp b/libraries/networking/src/ResourceCache.cpp
index 076db44ea6..7aad8d468a 100644
--- a/libraries/networking/src/ResourceCache.cpp
+++ b/libraries/networking/src/ResourceCache.cpp
@@ -10,6 +10,7 @@
 //
 
 #include "ResourceCache.h"
+#include "ResourceRequestObserver.h"
 
 #include <cfloat>
 #include <cmath>
@@ -252,7 +253,9 @@ ResourceCache::ResourceCache(QObject* parent) : QObject(parent) {
     }
 }
 
-ResourceCache::~ResourceCache() {}
+ResourceCache::~ResourceCache() {
+    clearUnusedResources();
+}
 
 void ResourceCache::clearATPAssets() {
     {
@@ -338,28 +341,31 @@ QSharedPointer<Resource> ResourceCache::getResource(const QUrl& url, const QUrl&
     }
     if (resource) {
         removeUnusedResource(resource);
-        return resource;
     }
 
-    if (!url.isValid() && !url.isEmpty() && fallback.isValid()) {
-        return getResource(fallback, QUrl());
+    if (!resource && !url.isValid() && !url.isEmpty() && fallback.isValid()) {
+        resource = getResource(fallback, QUrl());
     }
 
-    resource = createResource(
-        url,
-        fallback.isValid() ?  getResource(fallback, QUrl()) : QSharedPointer<Resource>(),
-        extra);
-    resource->setSelf(resource);
-    resource->setCache(this);
-    resource->moveToThread(qApp->thread());
-    connect(resource.data(), &Resource::updateSize, this, &ResourceCache::updateTotalSize);
-    {
-        QWriteLocker locker(&_resourcesLock);
-        _resources.insert(url, resource);
+    if (!resource) {
+        resource = createResource(
+            url,
+            fallback.isValid() ?  getResource(fallback, QUrl()) : QSharedPointer<Resource>(),
+            extra);
+        resource->setSelf(resource);
+        resource->setCache(this);
+        resource->moveToThread(qApp->thread());
+        connect(resource.data(), &Resource::updateSize, this, &ResourceCache::updateTotalSize);
+        {
+            QWriteLocker locker(&_resourcesLock);
+            _resources.insert(url, resource);
+        }
+        removeUnusedResource(resource);
+        resource->ensureLoading();
     }
-    removeUnusedResource(resource);
-    resource->ensureLoading();
 
+    DependencyManager::get<ResourceRequestObserver>()->update(
+        resource->getURL(), -1, "ResourceCache::getResource");
     return resource;
 }
 
@@ -682,7 +688,8 @@ void Resource::makeRequest() {
 
     PROFILE_ASYNC_BEGIN(resource, "Resource:" + getType(), QString::number(_requestID), { { "url", _url.toString() }, { "activeURL", _activeUrl.toString() } });
 
-    _request = DependencyManager::get<ResourceManager>()->createResourceRequest(this, _activeUrl);
+    _request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        this, _activeUrl, true, -1, "Resource::makeRequest");
 
     if (!_request) {
         qCDebug(networking).noquote() << "Failed to get request for" << _url.toDisplayString();
diff --git a/libraries/networking/src/ResourceManager.cpp b/libraries/networking/src/ResourceManager.cpp
index 553f0d0a61..9539a10c2d 100644
--- a/libraries/networking/src/ResourceManager.cpp
+++ b/libraries/networking/src/ResourceManager.cpp
@@ -112,22 +112,28 @@ void ResourceManager::cleanup() {
     _thread.wait();
 }
 
-ResourceRequest* ResourceManager::createResourceRequest(QObject* parent, const QUrl& url) {
+ResourceRequest* ResourceManager::createResourceRequest(
+    QObject* parent,
+    const QUrl& url,
+    const bool isObservable,
+    const qint64 callerId,
+    const QString& extra
+) {
     auto normalizedURL = normalizeURL(url);
     auto scheme = normalizedURL.scheme();
 
     ResourceRequest* request = nullptr;
 
     if (scheme == URL_SCHEME_FILE || scheme == URL_SCHEME_QRC) {
-        request = new FileResourceRequest(normalizedURL);
+        request = new FileResourceRequest(normalizedURL, isObservable, callerId, extra);
     } else if (scheme == URL_SCHEME_HTTP || scheme == URL_SCHEME_HTTPS || scheme == URL_SCHEME_FTP) {
-        request = new HTTPResourceRequest(normalizedURL);
+        request = new HTTPResourceRequest(normalizedURL, isObservable, callerId, extra);
     } else if (scheme == URL_SCHEME_ATP) {
         if (!_atpSupportEnabled) {
             qCDebug(networking) << "ATP support not enabled, unable to create request for URL: " << url.url();
             return nullptr;
         }
-        request = new AssetResourceRequest(normalizedURL);
+        request = new AssetResourceRequest(normalizedURL, isObservable, callerId, extra);
     } else {
         qCDebug(networking) << "Unknown scheme (" << scheme << ") for URL: " << url.url();
         return nullptr;
@@ -163,7 +169,7 @@ bool ResourceManager::resourceExists(const QUrl& url) {
 
         return reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 200;
     } else if (scheme == URL_SCHEME_ATP && _atpSupportEnabled) {
-        auto request = new AssetResourceRequest(url);
+        auto request = new AssetResourceRequest(url, ResourceRequest::IS_NOT_OBSERVABLE);
         ByteRange range;
         range.fromInclusive = 1;
         range.toExclusive = 1;
diff --git a/libraries/networking/src/ResourceManager.h b/libraries/networking/src/ResourceManager.h
index a79222d2d8..adaa1cf886 100644
--- a/libraries/networking/src/ResourceManager.h
+++ b/libraries/networking/src/ResourceManager.h
@@ -34,7 +34,12 @@ public:
     QString normalizeURL(const QString& urlString);
     QUrl normalizeURL(const QUrl& url);
 
-    ResourceRequest* createResourceRequest(QObject* parent, const QUrl& url);
+    ResourceRequest* createResourceRequest(
+        QObject* parent,
+        const QUrl& url,
+        const bool isObservable = true,
+        const qint64 callerId = -1,
+        const QString& extra = "");
 
     void init();
     void cleanup();
diff --git a/libraries/networking/src/ResourceRequest.cpp b/libraries/networking/src/ResourceRequest.cpp
index 115e665b77..c63bd4c563 100644
--- a/libraries/networking/src/ResourceRequest.cpp
+++ b/libraries/networking/src/ResourceRequest.cpp
@@ -10,13 +10,13 @@
 //
 
 #include "ResourceRequest.h"
+#include "ResourceRequestObserver.h"
 
 #include <DependencyManager.h>
 #include <StatTracker.h>
 
 #include <QtCore/QThread>
 
-ResourceRequest::ResourceRequest(const QUrl& url) : _url(url) { }
 
 void ResourceRequest::send() {
     if (QThread::currentThread() != thread()) {
@@ -24,6 +24,10 @@ void ResourceRequest::send() {
         return;
     }
 
+    if (_isObservable) {
+        DependencyManager::get<ResourceRequestObserver>()->update(_url, _callerId, _extra + " => ResourceRequest::send");
+    }
+
     Q_ASSERT(_state == NotStarted);
 
     _state = InProgress;
diff --git a/libraries/networking/src/ResourceRequest.h b/libraries/networking/src/ResourceRequest.h
index 8dd09ccc49..eb306ca5be 100644
--- a/libraries/networking/src/ResourceRequest.h
+++ b/libraries/networking/src/ResourceRequest.h
@@ -40,7 +40,20 @@ const QString STAT_FILE_RESOURCE_TOTAL_BYTES = "FILEBytesDownloaded";
 class ResourceRequest : public QObject {
     Q_OBJECT
 public:
-    ResourceRequest(const QUrl& url);
+    static const bool IS_OBSERVABLE = true;
+    static const bool IS_NOT_OBSERVABLE = false;
+
+    ResourceRequest(
+        const QUrl& url,
+        const bool isObservable = IS_OBSERVABLE,
+        const qint64 callerId = -1,
+        const QString& extra = ""
+    ) : _url(url),
+        _isObservable(isObservable),
+        _callerId(callerId),
+        _extra(extra)
+    { }
+
     virtual ~ResourceRequest() = default;
 
     enum State {
@@ -99,6 +112,9 @@ protected:
     bool _rangeRequestSuccessful { false };
     uint64_t _totalSizeOfResource { 0 };
     int64_t _lastRecordedBytesDownloaded { 0 };
+    bool _isObservable;
+    qint64 _callerId;
+    QString _extra;
 };
 
 #endif
diff --git a/libraries/octree/src/Octree.cpp b/libraries/octree/src/Octree.cpp
index 3d387e0956..06db92bcf7 100644
--- a/libraries/octree/src/Octree.cpp
+++ b/libraries/octree/src/Octree.cpp
@@ -734,11 +734,17 @@ QString getMarketplaceID(const QString& urlString) {
     return QString();
 }
 
-bool Octree::readFromURL(const QString& urlString) {
+bool Octree::readFromURL(
+    const QString& urlString,
+    const bool isObservable,
+    const qint64 callerId
+) {
     QString trimmedUrl = urlString.trimmed();
     QString marketplaceID = getMarketplaceID(trimmedUrl);
-    auto request =
-        std::unique_ptr<ResourceRequest>(DependencyManager::get<ResourceManager>()->createResourceRequest(this, trimmedUrl));
+    qDebug() << "!!!!! going to createResourceRequest " << callerId;
+    auto request = std::unique_ptr<ResourceRequest>(
+        DependencyManager::get<ResourceManager>()->createResourceRequest(
+            this, trimmedUrl, isObservable, callerId, "Octree::readFromURL"));
 
     if (!request) {
         return false;
@@ -768,7 +774,11 @@ bool Octree::readFromURL(const QString& urlString) {
 }
 
 
-bool Octree::readFromStream(uint64_t streamLength, QDataStream& inputStream, const QString& marketplaceID) {
+bool Octree::readFromStream(
+    uint64_t streamLength,
+    QDataStream& inputStream,
+    const QString& marketplaceID
+) {
     // decide if this is binary SVO or JSON-formatted SVO
     QIODevice *device = inputStream.device();
     char firstChar;
@@ -809,7 +819,11 @@ QJsonDocument addMarketplaceIDToDocumentEntities(QJsonDocument& doc, const QStri
 
 const int READ_JSON_BUFFER_SIZE = 2048;
 
-bool Octree::readJSONFromStream(uint64_t streamLength, QDataStream& inputStream, const QString& marketplaceID /*=""*/) {
+bool Octree::readJSONFromStream(
+    uint64_t streamLength,
+    QDataStream& inputStream,
+    const QString& marketplaceID /*=""*/
+) {
     // if the data is gzipped we may not have a useful bytesAvailable() result, so just keep reading until
     // we get an eof.  Leave streamLength parameter for consistency.
 
diff --git a/libraries/octree/src/Octree.h b/libraries/octree/src/Octree.h
index a2b2f227cb..44b429582a 100644
--- a/libraries/octree/src/Octree.h
+++ b/libraries/octree/src/Octree.h
@@ -210,7 +210,7 @@ public:
 
     // Octree importers
     bool readFromFile(const char* filename);
-    bool readFromURL(const QString& url); // will support file urls as well...
+    bool readFromURL(const QString& url, const bool isObservable = true, const qint64 callerId = -1); // will support file urls as well...
     bool readFromStream(uint64_t streamLength, QDataStream& inputStream, const QString& marketplaceID="");
     bool readSVOFromStream(uint64_t streamLength, QDataStream& inputStream);
     bool readJSONFromStream(uint64_t streamLength, QDataStream& inputStream, const QString& marketplaceID="");
diff --git a/libraries/script-engine/src/FileScriptingInterface.cpp b/libraries/script-engine/src/FileScriptingInterface.cpp
index 3bf044fd8b..4e07877d57 100644
--- a/libraries/script-engine/src/FileScriptingInterface.cpp
+++ b/libraries/script-engine/src/FileScriptingInterface.cpp
@@ -138,7 +138,8 @@ QString FileScriptingInterface::convertUrlToPath(QUrl url) {
 // this function is not in use
 void FileScriptingInterface::downloadZip(QString path, const QString link) {
     QUrl url = QUrl(link);
-    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, url);
+    auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+        nullptr, url, true, -1, "FileScriptingInterface::downloadZip");
     connect(request, &ResourceRequest::finished, this, [this, path]{
         unzipFile(path, ""); // so intellisense isn't mad
     });
diff --git a/libraries/script-engine/src/ScriptCache.cpp b/libraries/script-engine/src/ScriptCache.cpp
index dba2db0458..8acf88a7ce 100644
--- a/libraries/script-engine/src/ScriptCache.cpp
+++ b/libraries/script-engine/src/ScriptCache.cpp
@@ -109,7 +109,8 @@ void ScriptCache::getScriptContents(const QString& scriptOrURL, contentAvailable
             #ifdef THREAD_DEBUGGING
             qCDebug(scriptengine) << "about to call: ResourceManager::createResourceRequest(this, url); on thread [" << QThread::currentThread() << "] expected thread [" << thread() << "]";
             #endif
-            auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, url);
+            auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+                nullptr, url, true, -1, "ScriptCache::getScriptContents");
             Q_ASSERT(request);
             request->setCacheEnabled(!forceDownload);
             connect(request, &ResourceRequest::finished, this, [=]{ scriptContentAvailable(maxRetries); });
@@ -166,7 +167,8 @@ void ScriptCache::scriptContentAvailable(int maxRetries) {
                         qCDebug(scriptengine) << QString("Retrying script request [%1 / %2]: %3")
                             .arg(attempt).arg(maxRetries).arg(url.toString());
 
-                        auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(nullptr, url);
+                        auto request = DependencyManager::get<ResourceManager>()->createResourceRequest(
+                            nullptr, url, true, -1, "ScriptCache::scriptContentAvailable");
                         Q_ASSERT(request);
 
                         // We've already made a request, so the cache must be disabled or it wasn't there, so enabling
diff --git a/libraries/script-engine/src/XMLHttpRequestClass.cpp b/libraries/script-engine/src/XMLHttpRequestClass.cpp
index ebc459b2d1..a74d185c6a 100644
--- a/libraries/script-engine/src/XMLHttpRequestClass.cpp
+++ b/libraries/script-engine/src/XMLHttpRequestClass.cpp
@@ -21,6 +21,7 @@
 #include <NetworkAccessManager.h>
 #include <NetworkingConstants.h>
 
+#include "ResourceRequestObserver.h"
 #include "ScriptEngine.h"
 
 const QString METAVERSE_API_URL = NetworkingConstants::METAVERSE_SERVER_URL().toString() + "/api/";
@@ -189,7 +190,7 @@ void XMLHttpRequestClass::send(const QScriptValue& data) {
 }
 
 void XMLHttpRequestClass::doSend() {
-    
+    DependencyManager::get<ResourceRequestObserver>()->update(_url, -1, "XMLHttpRequestClass::doSend");
     _reply = NetworkAccessManager::getInstance().sendCustomRequest(_request, _method.toLatin1(), _sendData);
     connectToReply(_reply);
 
diff --git a/libraries/shared/src/ResourceRequestObserver.cpp b/libraries/shared/src/ResourceRequestObserver.cpp
new file mode 100644
index 0000000000..5e0925520a
--- /dev/null
+++ b/libraries/shared/src/ResourceRequestObserver.cpp
@@ -0,0 +1,28 @@
+//
+//  ResourceAccessMonitor.h
+//  libraries/networking/src
+//
+//  Created by Kerry Ivan Kurian on 9/27/18.
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+
+#include <QJsonArray>
+#include <QJsonObject>
+#include <QString>
+#include <QUrl>
+#include "ResourceRequestObserver.h"
+
+void ResourceRequestObserver::update(const QUrl& requestUrl,
+    const qint64 callerId,
+    const QString& extra) {
+    QJsonArray array;
+    QJsonObject data { { "url", requestUrl.toString() },
+        { "callerId", callerId },
+        { "extra", extra }
+    };
+    emit resourceRequestEvent(data.toVariantMap());
+}
diff --git a/libraries/shared/src/ResourceRequestObserver.h b/libraries/shared/src/ResourceRequestObserver.h
new file mode 100644
index 0000000000..1b1bc322e5
--- /dev/null
+++ b/libraries/shared/src/ResourceRequestObserver.h
@@ -0,0 +1,29 @@
+//
+//  ResourceRequestObserver.h
+//  libraries/commerce/src
+//
+//  Created by Kerry Ivan Kurian on 9/27/18.
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+
+#include <QJsonObject>
+#include <QString>
+#include <QNetworkRequest>
+
+#include "DependencyManager.h"
+
+
+class ResourceRequestObserver : public QObject, public Dependency {
+    Q_OBJECT
+    SINGLETON_DEPENDENCY
+
+public:
+    void update(const QUrl& requestUrl, const qint64 callerId = -1, const QString& extra = "");
+
+signals:
+    void resourceRequestEvent(QVariantMap result);
+};
diff --git a/plugins/oculus/src/OculusHelpers.cpp b/plugins/oculus/src/OculusHelpers.cpp
index 511984c657..402b05f39c 100644
--- a/plugins/oculus/src/OculusHelpers.cpp
+++ b/plugins/oculus/src/OculusHelpers.cpp
@@ -85,6 +85,11 @@ private:
         if (!OVR_SUCCESS(ovr_Create(&session, &luid))) {
             qCWarning(oculusLog) << "Failed to acquire Oculus session" << ovr::getError();
             return;
+        } else {
+            ovrResult setFloorLevelOrigin = ovr_SetTrackingOriginType(session, ovrTrackingOrigin::ovrTrackingOrigin_FloorLevel);
+            if (!OVR_SUCCESS(setFloorLevelOrigin)) {
+                qCWarning(oculusLog) << "Failed to set the Oculus tracking origin to floor level" << ovr::getError();
+            }
         }
     }
 
diff --git a/plugins/openvr/src/OpenVrDisplayPlugin.cpp b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
index ef0ac65c2a..99c861871d 100644
--- a/plugins/openvr/src/OpenVrDisplayPlugin.cpp
+++ b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
@@ -463,7 +463,7 @@ bool OpenVrDisplayPlugin::internalActivate() {
     auto chaperone = vr::VRChaperone();
     if (chaperone) {
         float const UI_RADIUS = 1.0f;
-        float const UI_HEIGHT = 1.6f;
+        float const UI_HEIGHT = 0.0f;
         float const UI_Z_OFFSET = 0.5;
 
         float xSize, zSize;
diff --git a/scripts/system/edit.js b/scripts/system/edit.js
index b911541f79..15068cf097 100644
--- a/scripts/system/edit.js
+++ b/scripts/system/edit.js
@@ -42,6 +42,9 @@ var TITLE_OFFSET = 60;
 var CREATE_TOOLS_WIDTH = 490;
 var MAX_DEFAULT_ENTITY_LIST_HEIGHT = 942;
 
+var IMAGE_MODEL = "https://hifi-content.s3.amazonaws.com/DomainContent/production/default-image-model.fbx";
+var DEFAULT_IMAGE = "https://hifi-content.s3.amazonaws.com/DomainContent/production/no-image.jpg";
+
 var createToolsWindow = new CreateWindow(
     Script.resourcesPath() + "qml/hifi/tablet/EditTools.qml",
     'Create Tools',
@@ -294,6 +297,202 @@ function checkEditPermissionsAndUpdate() {
     }
 }
 
+const DEFAULT_ENTITY_PROPERTIES = {
+    All: {
+        description: "",
+        rotation: { x: 0, y: 0, z: 0, w: 1 },
+        collidesWith: "static,dynamic,kinematic,otherAvatar",
+        collisionSoundURL: "",
+        cloneable: false,
+        ignoreIK: true,
+        canCastShadow: true,
+        href: "",
+        script: "",
+        serverScripts:"",
+        velocity: {
+            x: 0,
+            y: 0,
+            z: 0
+        },
+        damping: 0,
+        angularVelocity: {
+            x: 0,
+            y: 0,
+            z: 0
+        },
+        angularDamping: 0,
+        restitution: 0.5,
+        friction: 0.5,
+        density: 1000,
+        gravity: {
+            x: 0,
+            y: 0,
+            z: 0
+        },
+        acceleration: {
+            x: 0,
+            y: 0,
+            z: 0
+        },
+        dynamic: false,
+    },
+    Shape: {
+        shape: "Box",
+        dimensions: { x: 0.2, y: 0.2, z: 0.2 },
+        color: { red: 0, green: 180, blue: 239 },
+    },
+    Text: {
+        text: "Text",
+        dimensions: {
+            x: 0.65,
+            y: 0.3,
+            z: 0.01
+        },
+        textColor: { red: 255, green: 255, blue: 255 },
+        backgroundColor: { red: 0, green: 0, blue: 0 },
+        lineHeight: 0.06,
+        faceCamera: false,
+    },
+    Zone: {
+        dimensions: {
+            x: 10,
+            y: 10,
+            z: 10
+        },
+        flyingAllowed: true,
+        ghostingAllowed: true,
+        filter: "",
+        keyLightMode: "inherit",
+        keyLightColor: { red: 255, green: 255, blue: 255 },
+        keyLight: {
+            intensity: 1.0,
+            direction: {
+                x: 0.0,
+                y: -0.707106769084930, // 45 degrees
+                z: 0.7071067690849304
+            },
+            castShadows: true
+        },
+        ambientLightMode: "inherit",
+        ambientLight: {
+            ambientIntensity: 0.5,
+            ambientURL: ""
+        },
+        hazeMode: "inherit",
+        haze: {
+            hazeRange: 1000,
+            hazeAltitudeEffect: false,
+            hazeBaseRef: 0,
+            hazeColor: {
+                red: 128,
+                green: 154,
+                blue: 179
+            },
+            hazeBackgroundBlend: 0,
+            hazeEnableGlare: false,
+            hazeGlareColor: {
+                red: 255,
+                green: 229,
+                blue: 179
+            },
+        },
+        bloomMode: "inherit"
+    },
+    Model: {
+        collisionShape: "none",
+        compoundShapeURL: "",
+        animation: {
+            url: "",
+            running: false,
+            allowTranslation: false,
+            loop: true,
+            hold: false,
+            currentFrame: 0,
+            firstFrame: 0,
+            lastFrame: 100000,
+            fps: 30.0,
+        }
+    },
+    Image: {
+        dimensions: {
+            x: 0.5385,
+            y: 0.2819,
+            z: 0.0092
+        },
+        shapeType: "box",
+        collisionless: true,
+        modelURL: IMAGE_MODEL,
+        textures: JSON.stringify({ "tex.picture": "" })
+    },
+    Web: {
+        dimensions: {
+            x: 1.6,
+            y: 0.9,
+            z: 0.01
+        },
+        sourceUrl: "https://highfidelity.com/",
+        dpi: 30,
+    },
+    ParticleEffect: {
+        lifespan: 1.5,
+        maxParticles: 10,
+        textures: "https://content.highfidelity.com/DomainContent/production/Particles/wispy-smoke.png",
+        emitRate: 5.5,
+        emitSpeed: 0,
+        speedSpread: 0,
+        emitDimensions: { x: 0, y: 0, z: 0 },
+        emitOrientation: { x: 0, y: 0, z: 0, w: 1 },
+        emitterShouldTrail: true,
+        particleRadius: 0.25,
+        radiusStart: 0,
+        radiusFinish: 0.1,
+        radiusSpread: 0,
+        particleColor: {
+            red: 255,
+            green: 255,
+            blue: 255
+        },
+        colorSpread: {
+            red: 0,
+            green: 0,
+            blue: 0
+        },
+        alpha: 0,
+        alphaStart: 1,
+        alphaFinish: 0,
+        alphaSpread: 0,
+        emitAcceleration: {
+            x: 0,
+            y: 2.5,
+            z: 0
+        },
+        accelerationSpread: {
+            x: 0,
+            y: 0,
+            z: 0
+        },
+        particleSpin: 0,
+        spinStart: 0,
+        spinFinish: 0,
+        spinSpread: 0,
+        rotateWithEntity: false,
+        polarStart: 0,
+        polarFinish: 0,
+        azimuthStart: -Math.PI,
+        azimuthFinish: Math.PI
+    },
+    Light: {
+        color: { red: 255, green: 255, blue: 255 },
+        intensity: 5.0,
+        dimensions: DEFAULT_LIGHT_DIMENSIONS,
+        falloffRadius: 1.0,
+        isSpotlight: false,
+        exponent: 1.0,
+        cutoff: 75.0,
+        dimensions: { x: 20, y: 20, z: 20 },
+    },
+};
+
 var toolBar = (function () {
     var EDIT_SETTING = "io.highfidelity.isEditing"; // for communication with other scripts
     var that = {},
@@ -303,11 +502,29 @@ var toolBar = (function () {
         dialogWindow = null,
         tablet = null;
 
+    function applyProperties(originalProperties, newProperties) {
+        for (var key in newProperties) {
+            originalProperties[key] = newProperties[key];
+        }
+    }
     function createNewEntity(properties) {
         var dimensions = properties.dimensions ? properties.dimensions : DEFAULT_DIMENSIONS;
         var position = getPositionToCreateEntity();
         var entityID = null;
 
+        applyProperties(properties, DEFAULT_ENTITY_PROPERTIES.All);
+
+        var type = properties.type;
+        if (type == "Box" || type == "Sphere") {
+            applyProperties(properties, DEFAULT_ENTITY_PROPERTIES.Shape);
+        } else if (type == "Image") {
+            properties.type = "Model";
+            applyProperties(properties, DEFAULT_ENTITY_PROPERTIES.Image);
+        } else {
+            applyProperties(properties, DEFAULT_ENTITY_PROPERTIES[type]);
+        }
+
+
         if (position !== null && position !== undefined) {
             var direction;
             if (Camera.mode === "entity" || Camera.mode === "independent") {
@@ -385,7 +602,7 @@ var toolBar = (function () {
                         Entities.editEntity(entityID, {
                             position: position
                         });
-                        selectionManager._update();
+                        selectionManager._update(false, this);
                     } else if (dimensionsCheckCount < MAX_DIMENSIONS_CHECKS) {
                         Script.setTimeout(dimensionsCheckFunction, DIMENSIONS_CHECK_INTERVAL);
                     }
@@ -397,9 +614,9 @@ var toolBar = (function () {
                                    properties.type + " would be out of bounds.");
         }
 
-        selectionManager.clearSelections();
+        selectionManager.clearSelections(this);
         entityListTool.sendUpdate();
-        selectionManager.setSelections([entityID]);
+        selectionManager.setSelections([entityID], this);
 
         Window.setFocus();
 
@@ -550,7 +767,7 @@ var toolBar = (function () {
         }
         deletedEntityTimer = Script.setTimeout(function () {
             if (entitiesToDelete.length > 0) {
-                selectionManager.removeEntities(entitiesToDelete);
+                selectionManager.removeEntities(entitiesToDelete, this);
             }
             entityListTool.removeEntities(entitiesToDelete, selectionManager.selections);
             entitiesToDelete = [];
@@ -679,14 +896,12 @@ var toolBar = (function () {
         addButton("newLightButton", function () {
             createNewEntity({
                 type: "Light",
-                dimensions: DEFAULT_LIGHT_DIMENSIONS,
                 isSpotlight: false,
                 color: {
                     red: 150,
                     green: 150,
                     blue: 150
                 },
-
                 constantAttenuation: 1,
                 linearAttenuation: 0,
                 quadraticAttenuation: 0,
@@ -698,116 +913,30 @@ var toolBar = (function () {
         addButton("newTextButton", function () {
             createNewEntity({
                 type: "Text",
-                dimensions: {
-                    x: 0.65,
-                    y: 0.3,
-                    z: 0.01
-                },
-                backgroundColor: {
-                    red: 64,
-                    green: 64,
-                    blue: 64
-                },
-                textColor: {
-                    red: 255,
-                    green: 255,
-                    blue: 255
-                },
-                text: "some text",
-                lineHeight: 0.06
             });
         });
 
         addButton("newImageButton", function () {
-            var IMAGE_MODEL = "https://hifi-content.s3.amazonaws.com/DomainContent/production/default-image-model.fbx";
-            var DEFAULT_IMAGE = "https://hifi-content.s3.amazonaws.com/DomainContent/production/no-image.jpg";
             createNewEntity({
-                type: "Model",
-                dimensions: {
-                    x: 0.5385,
-                    y: 0.2819,
-                    z: 0.0092
-                },
-                shapeType: "box",
-                collisionless: true,
-                modelURL: IMAGE_MODEL,
-                textures: JSON.stringify({ "tex.picture": DEFAULT_IMAGE })
+                type: "Image",
             });
         });
 
         addButton("newWebButton", function () {
             createNewEntity({
                 type: "Web",
-                dimensions: {
-                    x: 1.6,
-                    y: 0.9,
-                    z: 0.01
-                },
-                sourceUrl: "https://highfidelity.com/"
             });
         });
 
         addButton("newZoneButton", function () {
             createNewEntity({
                 type: "Zone",
-                dimensions: {
-                    x: 10,
-                    y: 10,
-                    z: 10
-                }
             });
         });
 
         addButton("newParticleButton", function () {
             createNewEntity({
                 type: "ParticleEffect",
-                isEmitting: true,
-                emitterShouldTrail: true,
-                color: {
-                    red: 200,
-                    green: 200,
-                    blue: 200
-                },
-                colorSpread: {
-                    red: 0,
-                    green: 0,
-                    blue: 0
-                },
-                colorStart: {
-                    red: 200,
-                    green: 200,
-                    blue: 200
-                },
-                colorFinish: {
-                    red: 0,
-                    green: 0,
-                    blue: 0
-                },
-                emitAcceleration: {
-                    x: -0.5,
-                    y: 2.5,
-                    z: -0.5
-                },
-                accelerationSpread: {
-                    x: 0.5,
-                    y: 1,
-                    z: 0.5
-                },
-                emitRate: 5.5,
-                emitSpeed: 0,
-                speedSpread: 0,
-                lifespan: 1.5,
-                maxParticles: 10,
-                particleRadius: 0.25,
-                radiusStart: 0,
-                radiusFinish: 0.1,
-                radiusSpread: 0,
-                alpha: 0,
-                alphaStart: 1,
-                alphaFinish: 0,
-                polarStart: 0,
-                polarFinish: 0,
-                textures: "https://content.highfidelity.com/DomainContent/production/Particles/wispy-smoke.png"
             });
         });
 
@@ -866,7 +995,7 @@ var toolBar = (function () {
             gridTool.setVisible(false);
             grid.setEnabled(false);
             propertiesTool.setVisible(false);
-            selectionManager.clearSelections();
+            selectionManager.clearSelections(this);
             cameraManager.disable();
             selectionDisplay.disableTriggerMapping();
             tablet.landscape = false;
@@ -994,7 +1123,7 @@ function handleOverlaySelectionToolUpdates(channel, message, sender) {
             var entity = entityIconOverlayManager.findEntity(data.overlayID);
 
             if (entity !== null) {
-                selectionManager.setSelections([entity]);
+                selectionManager.setSelections([entity], this);
             }
         }
     }
@@ -1141,7 +1270,7 @@ function mouseClickEvent(event) {
 
         if (result === null || result === undefined) {
             if (!event.isShifted) {
-                selectionManager.clearSelections();
+                selectionManager.clearSelections(this);
             }
             return;
         }
@@ -1193,9 +1322,9 @@ function mouseClickEvent(event) {
             }
 
             if (!event.isShifted) {
-                selectionManager.setSelections([foundEntity]);
+                selectionManager.setSelections([foundEntity], this);
             } else {
-                selectionManager.addEntity(foundEntity, true);
+                selectionManager.addEntity(foundEntity, true, this);
             }
 
             if (wantDebug) {
@@ -1493,7 +1622,7 @@ function selectAllEtitiesInCurrentSelectionBox(keepIfTouching) {
                 }
             }
         }
-        selectionManager.setSelections(entities);
+        selectionManager.setSelections(entities, this);
     }
 }
 
@@ -1633,7 +1762,7 @@ function deleteSelectedEntities() {
         }
 
         if (savedProperties.length > 0) {
-            SelectionManager.clearSelections();
+            SelectionManager.clearSelections(this);
             pushCommandForSelections([], savedProperties);
             entityListTool.deleteEntities(deletedIDs);
         }
@@ -1650,7 +1779,7 @@ function toggleSelectedEntitiesLocked() {
             });
         }
         entityListTool.sendUpdate();
-        selectionManager._update();
+        selectionManager._update(false, this);
     }
 }
 
@@ -1664,7 +1793,7 @@ function toggleSelectedEntitiesVisible() {
             });
         }
         entityListTool.sendUpdate();
-        selectionManager._update();
+        selectionManager._update(false, this);
     }
 }
 
@@ -1861,7 +1990,7 @@ function importSVO(importURL) {
             }
 
             if (isActive) {
-                selectionManager.setSelections(pastedEntityIDs);
+                selectionManager.setSelections(pastedEntityIDs, this);
             }
         } else {
             Window.notifyEditError("Can't import entities: entities would be out of bounds.");
@@ -1909,7 +2038,7 @@ function deleteKey(value) {
 }
 function deselectKey(value) {
     if (value === 0) { // on release
-        selectionManager.clearSelections();
+        selectionManager.clearSelections(this);
     }
 }
 function toggleKey(value) {
@@ -2069,7 +2198,7 @@ function applyEntityProperties(data) {
     // We might be getting an undo while edit.js is disabled. If that is the case, don't set
     // our selections, causing the edit widgets to display.
     if (isActive) {
-        selectionManager.setSelections(selectedEntityIDs);
+        selectionManager.setSelections(selectedEntityIDs, this);
     }
 }
 
@@ -2272,7 +2401,7 @@ var PropertiesTool = function (opts) {
                 }
             }
             pushCommandForSelections();
-            selectionManager._update();
+            selectionManager._update(false, this);
         } else if (data.type === 'parent') {
             parentSelectedEntities();
         } else if (data.type === 'unparent') {
@@ -2301,7 +2430,7 @@ var PropertiesTool = function (opts) {
                         });
                     }
                     pushCommandForSelections();
-                    selectionManager._update();
+                    selectionManager._update(false, this);
                 }
             } else if (data.action === "moveAllToGrid") {
                 if (selectionManager.hasSelection()) {
@@ -2321,7 +2450,7 @@ var PropertiesTool = function (opts) {
                         });
                     }
                     pushCommandForSelections();
-                    selectionManager._update();
+                    selectionManager._update(false, this);
                 }
             } else if (data.action === "resetToNaturalDimensions") {
                 if (selectionManager.hasSelection()) {
@@ -2342,7 +2471,7 @@ var PropertiesTool = function (opts) {
                         }
                     }
                     pushCommandForSelections();
-                    selectionManager._update();
+                    selectionManager._update(false, this);
                 }
             } else if (data.action === "previewCamera") {
                 if (selectionManager.hasSelection()) {
@@ -2360,7 +2489,7 @@ var PropertiesTool = function (opts) {
                         });
                     }
                     pushCommandForSelections();
-                    selectionManager._update();
+                    selectionManager._update(false, this);
                 }
             } else if (data.action === "reloadClientScripts") {
                 if (selectionManager.hasSelection()) {
diff --git a/scripts/system/html/css/edit-style.css b/scripts/system/html/css/edit-style.css
index 8e7b3f1ad5..956ae529ab 100644
--- a/scripts/system/html/css/edit-style.css
+++ b/scripts/system/html/css/edit-style.css
@@ -1801,3 +1801,43 @@ input[type=button]#export {
 body#entity-list-body {
     padding-bottom: 0;
 }
+
+.context-menu {
+    display: none;
+    position: fixed;
+    color: #000000;
+    background-color: #afafaf;
+    padding: 5px 0 5px 0;
+    cursor: default;
+}
+.context-menu li {
+    list-style-type: none;
+    padding: 4px 18px 4px 18px;
+    margin: 0;
+    white-space: nowrap;
+}
+.context-menu li:hover {
+    background-color: #e3e3e3;
+}
+.context-menu li.separator {
+    border-top: 1px solid #333333;
+    margin: 5px 5px;
+    padding: 0 0;
+}
+.context-menu li.disabled {
+    color: #333333;
+}
+.context-menu li.separator:hover, .context-menu li.disabled:hover {
+    background-color: #afafaf;
+}
+
+input.rename-entity {
+    height: 100%;
+    width: 100%;
+    border: none;
+    font-family: FiraSans-SemiBold;
+    font-size: 15px;
+    /* need this to show the text cursor when the input field is empty */
+    padding-left: 2px;
+}
+
diff --git a/scripts/system/html/entityList.html b/scripts/system/html/entityList.html
index c62c785c99..ae994b56a4 100644
--- a/scripts/system/html/entityList.html
+++ b/scripts/system/html/entityList.html
@@ -16,6 +16,7 @@
         <script type="text/javascript" src="js/eventBridgeLoader.js"></script>
         <script type="text/javascript" src="js/spinButtons.js"></script>
         <script type="text/javascript" src="js/listView.js"></script>
+        <script type="text/javascript" src="js/entityListContextMenu.js"></script>
         <script type="text/javascript" src="js/entityList.js"></script>
     </head>
     <body onload='loaded();' id="entity-list-body">
diff --git a/scripts/system/html/js/entityList.js b/scripts/system/html/js/entityList.js
index 0ced016d26..4beff83b0e 100644
--- a/scripts/system/html/js/entityList.js
+++ b/scripts/system/html/js/entityList.js
@@ -13,7 +13,7 @@ const DESCENDING_STRING = '&#x25BE;';
 const LOCKED_GLYPH = "&#xe006;";
 const VISIBLE_GLYPH = "&#xe007;";
 const TRANSPARENCY_GLYPH = "&#xe00b;";
-const BAKED_GLYPH = "&#xe01a;"
+const BAKED_GLYPH = "&#xe01a;";
 const SCRIPT_GLYPH = "k";
 const BYTES_PER_MEGABYTE = 1024 * 1024;
 const IMAGE_MODEL_NAME = 'default-image-model.fbx';
@@ -54,10 +54,10 @@ const COMPARE_ASCENDING = function(a, b) {
     }
 
     return 1;
-}
+};
 const COMPARE_DESCENDING = function(a, b) {
     return COMPARE_ASCENDING(b, a);
-}
+};
 
 // List of all entities
 var entities = [];
@@ -70,6 +70,11 @@ var selectedEntities = [];
 
 var entityList = null; // The ListView
 
+/**
+ * @type EntityListContextMenu
+ */
+var entityListContextMenu = null;
+
 var currentSortColumn = 'type';
 var currentSortOrder = ASCENDING_SORT;
 var isFilterInView = false;
@@ -156,22 +161,22 @@ function loaded() {
         };
         elRefresh.onclick = function() {
             refreshEntities();
-        }
+        };
         elToggleLocked.onclick = function() {
             EventBridge.emitWebEvent(JSON.stringify({ type: 'toggleLocked' }));
-        }
+        };
         elToggleVisible.onclick = function() {
             EventBridge.emitWebEvent(JSON.stringify({ type: 'toggleVisible' }));
-        }
+        };
         elExport.onclick = function() {
             EventBridge.emitWebEvent(JSON.stringify({ type: 'export'}));
-        }
+        };
         elPal.onclick = function() {
             EventBridge.emitWebEvent(JSON.stringify({ type: 'pal' }));
-        }
+        };
         elDelete.onclick = function() {
             EventBridge.emitWebEvent(JSON.stringify({ type: 'delete' }));
-        }
+        };
         elFilter.onkeyup = refreshEntityList;
         elFilter.onpaste = refreshEntityList;
         elFilter.onchange = onFilterChange;
@@ -184,17 +189,105 @@ function loaded() {
         
         entityList = new ListView(elEntityTableBody, elEntityTableScroll, elEntityTableHeaderRow,
                                   createRow, updateRow, clearRow, WINDOW_NONVARIABLE_HEIGHT);
-        
+
+        entityListContextMenu = new EntityListContextMenu();
+
+
+        function startRenamingEntity(entityID) {
+            let entity = entitiesByID[entityID];
+            if (!entity || entity.locked || !entity.elRow) {
+                return;
+            }
+
+            let elCell = entity.elRow.childNodes[COLUMN_INDEX.NAME];
+            let elRenameInput = document.createElement("input");
+            elRenameInput.setAttribute('class', 'rename-entity');
+            elRenameInput.value = entity.name;
+            let ignoreClicks = function(event) {
+                event.stopPropagation();
+            };
+            elRenameInput.onclick = ignoreClicks;
+            elRenameInput.ondblclick = ignoreClicks;
+            elRenameInput.onkeyup = function(keyEvent) {
+                if (keyEvent.key === "Enter") {
+                    elRenameInput.blur();
+                }
+            };
+
+            elRenameInput.onblur = function(event) {
+                let value = elRenameInput.value;
+                EventBridge.emitWebEvent(JSON.stringify({
+                    type: 'rename',
+                    entityID: entityID,
+                    name: value
+                }));
+                entity.name = value;
+                elCell.innerText = value;
+            };
+
+            elCell.innerHTML = "";
+            elCell.appendChild(elRenameInput);
+
+            elRenameInput.select();
+        }
+
+        entityListContextMenu.setOnSelectedCallback(function(optionName, selectedEntityID) {
+            switch (optionName) {
+                case "Cut":
+                    EventBridge.emitWebEvent(JSON.stringify({ type: 'cut' }));
+                    break;
+                case "Copy":
+                    EventBridge.emitWebEvent(JSON.stringify({ type: 'copy' }));
+                    break;
+                case "Paste":
+                    EventBridge.emitWebEvent(JSON.stringify({ type: 'paste' }));
+                    break;
+                case "Rename":
+                    startRenamingEntity(selectedEntityID);
+                    break;
+                case "Duplicate":
+                    EventBridge.emitWebEvent(JSON.stringify({ type: 'duplicate' }));
+                    break;
+                case "Delete":
+                    EventBridge.emitWebEvent(JSON.stringify({ type: 'delete' }));
+                    break;
+            }
+        });
+
+        function onRowContextMenu(clickEvent) {
+            let entityID = this.dataset.entityID;
+
+            if (!selectedEntities.includes(entityID)) {
+                let selection = [entityID];
+                updateSelectedEntities(selection);
+
+                EventBridge.emitWebEvent(JSON.stringify({
+                    type: "selectionUpdate",
+                    focus: false,
+                    entityIds: selection,
+                }));
+            }
+
+            let enabledContextMenuItems = ['Copy', 'Paste', 'Duplicate'];
+            if (entitiesByID[entityID] && !entitiesByID[entityID].locked) {
+                enabledContextMenuItems.push('Cut');
+                enabledContextMenuItems.push('Rename');
+                enabledContextMenuItems.push('Delete');
+            }
+
+            entityListContextMenu.open(clickEvent, entityID, enabledContextMenuItems);
+        }
+
         function onRowClicked(clickEvent) {
             let entityID = this.dataset.entityID;
             let selection = [entityID];
-            
+
             if (clickEvent.ctrlKey) {
                 let selectedIndex = selectedEntities.indexOf(entityID);
                 if (selectedIndex >= 0) {
                     selection = [];
                     selection = selection.concat(selectedEntities);
-                    selection.splice(selectedIndex, 1)
+                    selection.splice(selectedIndex, 1);
                 } else {
                     selection = selection.concat(selectedEntities);
                 }
@@ -221,28 +314,29 @@ function loaded() {
                     }
                 }
             } else if (!clickEvent.ctrlKey && !clickEvent.shiftKey && selectedEntities.length === 1) {
-                // if reselecting the same entity then deselect it
+                // if reselecting the same entity then start renaming it
                 if (selectedEntities[0] === entityID) {
-                    selection = [];
+                    startRenamingEntity(entityID);
                 }
             }
             
-            updateSelectedEntities(selection);
+            updateSelectedEntities(selection, false);
 
             EventBridge.emitWebEvent(JSON.stringify({
                 type: "selectionUpdate",
                 focus: false,
                 entityIds: selection,
             }));
-
-            refreshFooter();
         }
 
         function onRowDoubleClicked() {
+            let selection = [this.dataset.entityID];
+            updateSelectedEntities(selection, false);
+
             EventBridge.emitWebEvent(JSON.stringify({
                 type: "selectionUpdate",
                 focus: true,
-                entityIds: [this.dataset.entityID],
+                entityIds: selection,
             }));
         }
         
@@ -289,7 +383,7 @@ function loaded() {
                         hasScript: entity.hasScript,
                         elRow: null, // if this entity has a visible row element assigned to it
                         selected: false // if this entity is selected for edit regardless of having a visible row
-                    }
+                    };
                     
                     entities.push(entityData);
                     entitiesByID[entityData.id] = entityData;
@@ -418,7 +512,7 @@ function loaded() {
             isBaked: document.querySelector('#entity-isBaked .sort-order'),
             drawCalls: document.querySelector('#entity-drawCalls .sort-order'),
             hasScript: document.querySelector('#entity-hasScript .sort-order'),
-        }
+        };
         function setSortColumn(column) {
             PROFILE("set-sort-column", function() {
                 if (currentSortColumn === column) {
@@ -453,7 +547,7 @@ function loaded() {
             }
         }
         
-        function updateSelectedEntities(selectedIDs) {
+        function updateSelectedEntities(selectedIDs, autoScroll) {
             let notFound = false;
             
             // reset all currently selected entities and their rows first
@@ -482,6 +576,26 @@ function loaded() {
                 }
             });
 
+            if (autoScroll && selectedIDs.length > 0) {
+                let firstItem = Number.MAX_VALUE;
+                let lastItem = -1;
+                let itemFound = false;
+                visibleEntities.forEach(function(entity, index) {
+                    if (selectedIDs.indexOf(entity.id) !== -1) {
+                        if (firstItem > index) {
+                            firstItem = index;
+                        }
+                        if (lastItem < index) {
+                            lastItem = index;
+                        }
+                        itemFound = true;
+                    }
+                });
+                if (itemFound) {
+                    entityList.scrollToRow(firstItem, lastItem);
+                }
+            }
+
             refreshFooter();
 
             return notFound;
@@ -502,6 +616,7 @@ function loaded() {
                 }
                 row.appendChild(column);
             }
+            row.oncontextmenu = onRowContextMenu;
             row.onclick = onRowClicked;
             row.ondblclick = onRowDoubleClicked;
             return row;
@@ -641,7 +756,7 @@ function loaded() {
                 if (data.type === "clearEntityList") {
                     clearEntities();
                 } else if (data.type === "selectionUpdate") {
-                    let notFound = updateSelectedEntities(data.selectedIDs);
+                    let notFound = updateSelectedEntities(data.selectedIDs, true);
                     if (notFound) {
                         refreshEntities();
                     }
@@ -653,13 +768,13 @@ function loaded() {
                                 clearEntities();
                             } else {
                                 updateEntityData(newEntities);
-                                updateSelectedEntities(data.selectedIDs);
+                                updateSelectedEntities(data.selectedIDs, true);
                             }
                         }
                     });
                 } else if (data.type === "removeEntities" && data.deletedIDs !== undefined && data.selectedIDs !== undefined) {
                     removeEntities(data.deletedIDs);
-                    updateSelectedEntities(data.selectedIDs);
+                    updateSelectedEntities(data.selectedIDs, true);
                 } else if (data.type === "deleted" && data.ids) {
                     removeEntities(data.ids);
                 }
@@ -672,8 +787,15 @@ function loaded() {
     
     augmentSpinButtons();
 
-    // Disable right-click context menu which is not visible in the HMD and makes it seem like the app has locked
     document.addEventListener("contextmenu", function (event) {
+        entityListContextMenu.close();
+
+        // Disable default right-click context menu which is not visible in the HMD and makes it seem like the app has locked
         event.preventDefault();
     }, false);
+
+    // close context menu when switching focus to another window
+    $(window).blur(function() {
+        entityListContextMenu.close();
+    });
 }
diff --git a/scripts/system/html/js/entityListContextMenu.js b/scripts/system/html/js/entityListContextMenu.js
new file mode 100644
index 0000000000..d71719f252
--- /dev/null
+++ b/scripts/system/html/js/entityListContextMenu.js
@@ -0,0 +1,163 @@
+//
+//  entityListContextMenu.js
+//
+//  exampleContextMenus.js was originally created by David Rowe on 22 Aug 2018.
+//  Modified to entityListContextMenu.js by Thijs Wenker on 10 Oct 2018
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+/* eslint-env browser */
+const CONTEXT_MENU_CLASS = "context-menu";
+
+/**
+ * ContextMenu class for EntityList
+ * @constructor
+ */
+function EntityListContextMenu() {
+    this._elContextMenu = null;
+    this._onSelectedCallback = null;
+    this._listItems = [];
+    this._initialize();
+}
+
+EntityListContextMenu.prototype = {
+
+    /**
+     * @private
+     */
+    _elContextMenu: null,
+
+    /**
+     * @private
+     */
+    _onSelectedCallback: null,
+
+    /**
+     * @private
+     */
+    _selectedEntityID: null,
+
+    /**
+     * @private
+     */
+    _listItems: null,
+
+    /**
+     * Close the context menu
+     */
+    close: function() {
+        if (this.isContextMenuOpen()) {
+            this._elContextMenu.style.display = "none";
+        }
+    },
+
+    isContextMenuOpen: function() {
+        return this._elContextMenu.style.display === "block";
+    },
+
+    /**
+     * Open the context menu
+     * @param clickEvent
+     * @param selectedEntityID
+     * @param enabledOptions
+     */
+    open: function(clickEvent, selectedEntityID, enabledOptions) {
+        this._selectedEntityID = selectedEntityID;
+
+        this._listItems.forEach(function(listItem) {
+            let enabled = enabledOptions.includes(listItem.label);
+            listItem.enabled = enabled;
+            listItem.element.setAttribute('class', enabled ? '' : 'disabled');
+        });
+
+        this._elContextMenu.style.display = "block";
+        this._elContextMenu.style.left
+            = Math.min(clickEvent.pageX, document.body.offsetWidth - this._elContextMenu.offsetWidth).toString() + "px";
+        this._elContextMenu.style.top
+            = Math.min(clickEvent.pageY, document.body.clientHeight - this._elContextMenu.offsetHeight).toString() + "px";
+        clickEvent.stopPropagation();
+    },
+
+    /**
+     * Set the callback for when a menu item is selected
+     * @param onSelectedCallback
+     */
+    setOnSelectedCallback: function(onSelectedCallback) {
+        this._onSelectedCallback = onSelectedCallback;
+    },
+
+    /**
+     * Add a labeled item to the context menu
+     * @param itemLabel
+     * @private
+     */
+    _addListItem: function(itemLabel) {
+        let elListItem = document.createElement("li");
+        elListItem.innerText = itemLabel;
+
+        let listItem = {
+            label: itemLabel,
+            element: elListItem,
+            enabled: false
+        };
+
+        elListItem.addEventListener("click", function () {
+            if (listItem.enabled && this._onSelectedCallback) {
+                this._onSelectedCallback.call(this, itemLabel, this._selectedEntityID);
+            }
+        }.bind(this), false);
+
+        elListItem.setAttribute('class', 'disabled');
+
+        this._listItems.push(listItem);
+        this._elContextMenu.appendChild(elListItem);
+    },
+
+    /**
+     * Add a separator item to the context menu
+     * @private
+     */
+    _addListSeparator: function() {
+        let elListItem = document.createElement("li");
+        elListItem.setAttribute('class', 'separator');
+        this._elContextMenu.appendChild(elListItem);
+    },
+
+    /**
+     * Initialize the context menu.
+     * @private
+     */
+    _initialize: function() {
+        this._elContextMenu = document.createElement("ul");
+        this._elContextMenu.setAttribute("class", CONTEXT_MENU_CLASS);
+        document.body.appendChild(this._elContextMenu);
+
+        this._addListItem("Cut");
+        this._addListItem("Copy");
+        this._addListItem("Paste");
+        this._addListSeparator();
+        this._addListItem("Rename");
+        this._addListItem("Duplicate");
+        this._addListItem("Delete");
+
+        // Ignore clicks on context menu background or separator.
+        this._elContextMenu.addEventListener("click", function(event) {
+            // Sink clicks on context menu background or separator but let context menu item clicks through.
+            if (event.target.classList.contains(CONTEXT_MENU_CLASS)) {
+                event.stopPropagation();
+            }
+        });
+
+        // Provide means to close context menu without clicking menu item.
+        document.body.addEventListener("click", this.close.bind(this));
+        document.body.addEventListener("keydown", function(event) {
+            // Close context menu with Esc key.
+            if (this.isContextMenuOpen() && event.key === "Escape") {
+                this.close();
+            }
+        }.bind(this));
+    }
+};
diff --git a/scripts/system/html/js/listView.js b/scripts/system/html/js/listView.js
index 10dc37efba..62163ffe16 100644
--- a/scripts/system/html/js/listView.js
+++ b/scripts/system/html/js/listView.js
@@ -38,7 +38,7 @@ function ListView(elTableBody, elTableScroll, elTableHeaderRow, createRowFunctio
     this.lastRowShiftScrollTop = 0;
     
     this.initialize();
-};
+}
     
 ListView.prototype = {
     getNumRows: function() {
@@ -152,6 +152,30 @@ ListView.prototype = {
             this.refresh();
         }
     },
+
+    /**
+     * Scrolls firstRowIndex with least effort, also tries to make the window include the other selections in case lastRowIndex is set.
+     * In the case that firstRowIndex and lastRowIndex are already within the visible bounds then nothing will happen.
+     * @param {number} firstRowIndex - The row that will be scrolled to.
+     * @param {number} lastRowIndex - The last index of the bound.
+     */
+    scrollToRow: function (firstRowIndex, lastRowIndex) {
+        lastRowIndex = lastRowIndex ? lastRowIndex : firstRowIndex;
+        let boundingTop = firstRowIndex * this.rowHeight;
+        let boundingBottom = (lastRowIndex * this.rowHeight) + this.rowHeight;
+        if ((boundingBottom - boundingTop) > this.elTableScroll.clientHeight) {
+            boundingBottom = boundingTop + this.elTableScroll.clientHeight;
+        }
+
+        let currentVisibleAreaTop = this.elTableScroll.scrollTop;
+        let currentVisibleAreaBottom = currentVisibleAreaTop + this.elTableScroll.clientHeight;
+
+        if (boundingTop < currentVisibleAreaTop) {
+            this.elTableScroll.scrollTop = boundingTop;
+        } else if (boundingBottom > currentVisibleAreaBottom) {
+            this.elTableScroll.scrollTop = boundingBottom - (this.elTableScroll.clientHeight);
+        }
+    },
     
     refresh: function() {
         // block refreshing before rows are initialized
diff --git a/scripts/system/libraries/entityList.js b/scripts/system/libraries/entityList.js
index 30e952723f..585820d32f 100644
--- a/scripts/system/libraries/entityList.js
+++ b/scripts/system/libraries/entityList.js
@@ -15,7 +15,7 @@ var PROFILING_ENABLED = false;
 var profileIndent = '';
 const PROFILE_NOOP = function(_name, fn, args) {
     fn.apply(this, args);
-} ;
+};
 PROFILE = !PROFILING_ENABLED ? PROFILE_NOOP : function(name, fn, args) {
     console.log("PROFILE-Script " + profileIndent + "(" + name + ") Begin");
     var previousIndent = profileIndent;
@@ -98,7 +98,11 @@ EntityListTool = function(shouldUseEditTabletApp) {
         that.setVisible(!visible);
     };
 
-    selectionManager.addEventListener(function() {
+    selectionManager.addEventListener(function(isSelectionUpdate, caller) {
+        if (caller === that) {
+            // ignore events that we emitted from the entity list itself
+            return;
+        }
         var selectedIDs = [];
 
         for (var i = 0; i < selectionManager.selections.length; i++) {
@@ -224,7 +228,7 @@ EntityListTool = function(shouldUseEditTabletApp) {
             for (var i = 0; i < ids.length; i++) {
                 entityIDs.push(ids[i]);
             }
-            selectionManager.setSelections(entityIDs);
+            selectionManager.setSelections(entityIDs, that);
             if (data.focus) {
                 cameraManager.enable();
                 cameraManager.focus(selectionManager.worldPosition,
@@ -245,7 +249,7 @@ EntityListTool = function(shouldUseEditTabletApp) {
                 Window.saveAsync("Select Where to Save", "", "*.json");
             }
         } else if (data.type === "pal") {
-            var sessionIds = {}; // Collect the sessionsIds of all selected entitities, w/o duplicates.
+            var sessionIds = {}; // Collect the sessionsIds of all selected entities, w/o duplicates.
             selectionManager.selections.forEach(function (id) {
                 var lastEditedBy = Entities.getEntityProperties(id, 'lastEditedBy').lastEditedBy;
                 if (lastEditedBy) {
@@ -271,6 +275,19 @@ EntityListTool = function(shouldUseEditTabletApp) {
             filterInView = data.filterInView === true;
         } else if (data.type === "radius") {
             searchRadius = data.radius;
+        } else if (data.type === "cut") {
+            SelectionManager.cutSelectedEntities();
+        } else if (data.type === "copy") {
+            SelectionManager.copySelectedEntities();
+        } else if (data.type === "paste") {
+            SelectionManager.pasteEntities();
+        } else if (data.type === "duplicate") {
+            SelectionManager.duplicateSelection();
+            that.sendUpdate();
+        } else if (data.type === "rename") {
+            Entities.editEntity(data.entityID, {name: data.name});
+            // make sure that the name also gets updated in the properties window
+            SelectionManager._update();
         }
     };
 
diff --git a/scripts/system/libraries/entitySelectionTool.js b/scripts/system/libraries/entitySelectionTool.js
index 843d3e986f..3bb36d632e 100644
--- a/scripts/system/libraries/entitySelectionTool.js
+++ b/scripts/system/libraries/entitySelectionTool.js
@@ -40,7 +40,7 @@ SelectionManager = (function() {
         Messages.messageReceived.connect(handleEntitySelectionToolUpdates);
     }
 
-    // FUNCTION: HANDLE ENTITY SELECTION TOOL UDPATES
+    // FUNCTION: HANDLE ENTITY SELECTION TOOL UPDATES
     function handleEntitySelectionToolUpdates(channel, message, sender) {
         if (channel !== 'entityToolUpdates') {
             return;
@@ -63,7 +63,7 @@ SelectionManager = (function() {
                 if (wantDebug) {
                     print("setting selection to " + messageParsed.entityID);
                 }
-                that.setSelections([messageParsed.entityID]);
+                that.setSelections([messageParsed.entityID], that);
             }
         } else if (messageParsed.method === "clearSelection") {
             if (!SelectionDisplay.triggered() || SelectionDisplay.triggeredHand === messageParsed.hand) {
@@ -136,7 +136,7 @@ SelectionManager = (function() {
         return that.selections.length > 0;
     };
 
-    that.setSelections = function(entityIDs) {
+    that.setSelections = function(entityIDs, caller) {
         that.selections = [];
         for (var i = 0; i < entityIDs.length; i++) {
             var entityID = entityIDs[i];
@@ -144,10 +144,10 @@ SelectionManager = (function() {
             Selection.addToSelectedItemsList(HIGHLIGHT_LIST_NAME, "entity", entityID);
         }
 
-        that._update(true);
+        that._update(true, caller);
     };
 
-    that.addEntity = function(entityID, toggleSelection) {
+    that.addEntity = function(entityID, toggleSelection, caller) {
         if (entityID) {
             var idx = -1;
             for (var i = 0; i < that.selections.length; i++) {
@@ -165,7 +165,7 @@ SelectionManager = (function() {
             }
         }
 
-        that._update(true);
+        that._update(true, caller);
     };
 
     function removeEntityByID(entityID) {
@@ -176,21 +176,21 @@ SelectionManager = (function() {
         }
     }
 
-    that.removeEntity = function (entityID) {
+    that.removeEntity = function (entityID, caller) {
         removeEntityByID(entityID);
-        that._update(true);
+        that._update(true, caller);
     };
 
-    that.removeEntities = function(entityIDs) {
+    that.removeEntities = function(entityIDs, caller) {
         for (var i = 0, length = entityIDs.length; i < length; i++) {
             removeEntityByID(entityIDs[i]);
         }
-        that._update(true);
+        that._update(true, caller);
     };
 
-    that.clearSelections = function() {
+    that.clearSelections = function(caller) {
         that.selections = [];
-        that._update(true);
+        that._update(true, caller);
     };
     
     that.addChildrenEntities = function(parentEntityID, entityList) {
@@ -353,12 +353,12 @@ SelectionManager = (function() {
         }
 
         return createdEntityIDs;
-    }
+    };
 
     that.cutSelectedEntities = function() {
-        copySelectedEntities();
+        that.copySelectedEntities();
         deleteSelectedEntities();
-    }
+    };
 
     that.copySelectedEntities = function() {
         var entityProperties = Entities.getMultipleEntityProperties(that.selections);
@@ -434,7 +434,7 @@ SelectionManager = (function() {
                 z: brn.z + entityClipboard.dimensions.z / 2
             };
         }
-    }
+    };
 
     that.pasteEntities = function() {
         var dimensions = entityClipboard.dimensions;
@@ -442,7 +442,7 @@ SelectionManager = (function() {
         var pastePosition = getPositionToCreateEntity(maxDimension);
         var deltaPosition = Vec3.subtract(pastePosition, entityClipboard.position);
 
-        var copiedProperties = []
+        var copiedProperties = [];
         var ids = [];
         entityClipboard.entities.forEach(function(originalProperties) {
             var properties = deepCopy(originalProperties);
@@ -475,9 +475,9 @@ SelectionManager = (function() {
 
         redo(copiedProperties);
         undoHistory.pushCommand(undo, copiedProperties, redo, copiedProperties);
-    }
+    };
 
-    that._update = function(selectionUpdated) {
+    that._update = function(selectionUpdated, caller) {
         var properties = null;
         if (that.selections.length === 0) {
             that.localDimensions = null;
@@ -542,7 +542,7 @@ SelectionManager = (function() {
 
         for (var j = 0; j < listeners.length; j++) {
             try {
-                listeners[j](selectionUpdated === true);
+                listeners[j](selectionUpdated === true, caller);
             } catch (e) {
                 print("ERROR: entitySelectionTool.update got exception: " + JSON.stringify(e));
             }
@@ -985,7 +985,7 @@ SelectionDisplay = (function() {
     that.pressedHand = NO_HAND;
     that.triggered = function() {
         return that.triggeredHand !== NO_HAND;
-    }
+    };
     function pointingAtDesktopWindowOrTablet(hand) {
         var pointingAtDesktopWindow = (hand === Controller.Standard.RightHand && 
                                        SelectionManager.pointingAtDesktopWindowRight) ||
@@ -1032,7 +1032,7 @@ SelectionDisplay = (function() {
     that.disableTriggerMapping = function() {
         that.triggerClickMapping.disable();
         that.triggerPressMapping.disable();
-    }
+    };
     Script.scriptEnding.connect(that.disableTriggerMapping);
 
     // FUNCTION DEF(s): Intersection Check Helpers
@@ -1234,7 +1234,7 @@ SelectionDisplay = (function() {
             if (wantDebug) {
                 print("    Trigger SelectionManager::update");
             }
-            SelectionManager._update();
+            SelectionManager._update(false, that);
 
             if (wantDebug) {
                 print("=============== eST::MouseMoveEvent END =======================");
@@ -1299,7 +1299,7 @@ SelectionDisplay = (function() {
             lastMouseEvent.isControl = event.isControl;
             lastMouseEvent.isAlt = event.isAlt;
             activeTool.onMove(lastMouseEvent);
-            SelectionManager._update();
+            SelectionManager._update(false, this);
         }
     };
 
@@ -1315,7 +1315,7 @@ SelectionDisplay = (function() {
             lastMouseEvent.isControl = event.isControl;
             lastMouseEvent.isAlt = event.isAlt;
             activeTool.onMove(lastMouseEvent);
-            SelectionManager._update();
+            SelectionManager._update(false, this);
         }
     };
 
@@ -2179,7 +2179,7 @@ SelectionDisplay = (function() {
                     }
                 }
 
-                SelectionManager._update();
+                SelectionManager._update(false, this);
             }
         });
     }
@@ -2301,7 +2301,7 @@ SelectionDisplay = (function() {
                 
                 previousPickRay = pickRay;
     
-                SelectionManager._update();
+                SelectionManager._update(false, this);
             }
         });
     }
@@ -2488,7 +2488,7 @@ SelectionDisplay = (function() {
                 
                 previousPickRay = pickRay;
         
-                SelectionManager._update();
+                SelectionManager._update(false, this);
             }
         });
     }
@@ -2599,7 +2599,7 @@ SelectionDisplay = (function() {
                 
                 previousPickRay = pickRay;
         
-                SelectionManager._update();
+                SelectionManager._update(false, this);
             }
         });
     }
diff --git a/scripts/system/marketplaces/marketplaces.js b/scripts/system/marketplaces/marketplaces.js
index cca535a064..3085145176 100644
--- a/scripts/system/marketplaces/marketplaces.js
+++ b/scripts/system/marketplaces/marketplaces.js
@@ -49,6 +49,42 @@ var NO_BUTTON = 0; // QMessageBox::NoButton
 
 var NO_PERMISSIONS_ERROR_MESSAGE = "Cannot download model because you can't write to \nthe domain's Asset Server.";
 
+
+var resourceRequestEvents = [];
+function signalResourceRequestEvent(data) {
+    // Once we can tie resource request events to specific resources,
+    // we will have to update the "0" in here.
+    var resourceData = "from: " + data.extra + ": " + data.url.toString().replace("__NONE__,", "");
+
+    if (resourceObjectsInTest[0].resourceDataArray.indexOf(resourceData) === -1) {
+        resourceObjectsInTest[0].resourceDataArray.push(resourceData);
+
+        resourceObjectsInTest[0].resourceAccessEventText += "[" + data.date.toISOString() + "] " +
+            resourceData + "\n";
+
+        ui.tablet.sendToQml({
+            method: "resourceRequestEvent",
+            data: data,
+            resourceAccessEventText: resourceObjectsInTest[0].resourceAccessEventText
+        });
+    }
+}
+
+function onResourceRequestEvent(data) {
+    // Once we can tie resource request events to specific resources,
+    // we will have to update the "0" in here.
+    if (resourceObjectsInTest[0] && resourceObjectsInTest[0].currentlyRecordingResources) {
+        var resourceRequestEvent = {
+            "date": new Date(),
+            "url": data.url,
+            "callerId": data.callerId,
+            "extra": data.extra
+        };
+        resourceRequestEvents.push(resourceRequestEvent);
+        signalResourceRequestEvent(resourceRequestEvent);
+    }
+}
+
 function onMessageBoxClosed(id, button) {
     if (id === messageBox && button === CANCEL_BUTTON) {
         isDownloadBeingCancelled = true;
@@ -522,13 +558,18 @@ function getPositionToCreateEntity(extra) {
     return position;
 }
 
-function rezEntity(itemHref, itemType) {
+function defaultFor(arg, val) {
+    return typeof arg !== 'undefined' ? arg : val;
+}
+
+function rezEntity(itemHref, itemType, marketplaceItemTesterId) {
     var isWearable = itemType === "wearable";
-    var success = Clipboard.importEntities(itemHref);
+    var success = Clipboard.importEntities(itemHref, true, marketplaceItemTesterId);
     var wearableLocalPosition = null;
     var wearableLocalRotation = null;
     var wearableLocalDimensions = null;
     var wearableDimensions = null;
+    marketplaceItemTesterId = defaultFor(marketplaceItemTesterId, -1);
 
     if (itemType === "contentSet") {
         console.log("Item is a content set; codepath shouldn't go here.");
@@ -816,7 +857,8 @@ var resourceObjectsInTest = [];
 function signalNewResourceObjectInTest(resourceObject) {
     ui.tablet.sendToQml({
         method: "newResourceObjectInTest",
-        resourceObject: resourceObject });
+        resourceObject: resourceObject
+    });
 }
 
 var onQmlMessageReceived = function onQmlMessageReceived(message) {
@@ -877,11 +919,15 @@ var onQmlMessageReceived = function onQmlMessageReceived(message) {
     case 'checkout_rezClicked':
     case 'purchases_rezClicked':
     case 'tester_rezClicked':
-        rezEntity(message.itemHref, message.itemType);
+        rezEntity(message.itemHref, message.itemType, message.itemId);
         break;
     case 'tester_newResourceObject':
         var resourceObject = message.resourceObject;
-        resourceObjectsInTest[resourceObject.id] = resourceObject;
+        resourceObjectsInTest = []; // REMOVE THIS once we support specific referrers
+        resourceObject.currentlyRecordingResources = false;
+        resourceObject.resourceAccessEventText = "";
+        resourceObjectsInTest[resourceObject.resourceObjectId] = resourceObject;
+        resourceObjectsInTest[resourceObject.resourceObjectId].resourceDataArray = [];
         signalNewResourceObjectInTest(resourceObject);
         break;
     case 'tester_updateResourceObjectAssetType':
@@ -890,6 +936,13 @@ var onQmlMessageReceived = function onQmlMessageReceived(message) {
     case 'tester_deleteResourceObject':
         delete resourceObjectsInTest[message.objectId];
         break;
+    case 'tester_updateResourceRecordingStatus':
+        resourceObjectsInTest[message.objectId].currentlyRecordingResources = message.status;
+        if (message.status) {
+            resourceObjectsInTest[message.objectId].resourceDataArray = [];
+            resourceObjectsInTest[message.objectId].resourceAccessEventText = "";
+        }
+        break;
     case 'header_marketplaceImageClicked':
     case 'purchases_backClicked':
         openMarketplace(message.referrerURL);
@@ -1029,16 +1082,22 @@ var onQmlMessageReceived = function onQmlMessageReceived(message) {
 };
 
 function pushResourceObjectsInTest() {
-    var maxObjectId = -1;
-    for (var objectId in resourceObjectsInTest) {
-        signalNewResourceObjectInTest(resourceObjectsInTest[objectId]);
-        maxObjectId = (maxObjectId < objectId) ? parseInt(objectId) : maxObjectId;
+    var maxResourceObjectId = -1;
+    var length = resourceObjectsInTest.length;
+    for (var i = 0; i < length; i++) {
+        if (i in resourceObjectsInTest) {
+            signalNewResourceObjectInTest(resourceObjectsInTest[i]);
+            var resourceObjectId = resourceObjectsInTest[i].resourceObjectId;
+            maxResourceObjectId = (maxResourceObjectId < resourceObjectId) ? parseInt(resourceObjectId) : maxResourceObjectId;
+        }
     }
     // N.B. Thinking about removing the following sendToQml? Be sure
     // that the marketplace item tester QML has heard from us, at least
     // so that it can indicate to the user that all of the resoruce
     // objects in test have been transmitted to it.
-    ui.tablet.sendToQml({ method: "nextObjectIdInTest", id: maxObjectId + 1 });
+    //ui.tablet.sendToQml({ method: "nextObjectIdInTest", id: maxResourceObjectId + 1 });
+    // Since, for now, we only support 1 object in test, always send id: 0
+    ui.tablet.sendToQml({ method: "nextObjectIdInTest", id: 0 });
 }
 
 // Function Name: onTabletScreenChanged()
@@ -1193,6 +1252,7 @@ function startup() {
     ui.tablet.webEventReceived.connect(onWebEventReceived);
     Wallet.walletStatusChanged.connect(sendCommerceSettings);
     Window.messageBoxClosed.connect(onMessageBoxClosed);
+    ResourceRequestObserver.resourceRequestEvent.connect(onResourceRequestEvent);
 
     Wallet.refreshWalletStatus();
 }
@@ -1226,6 +1286,7 @@ function shutdown() {
     GlobalServices.myUsernameChanged.disconnect(onUsernameChanged);
     Entities.canWriteAssetsChanged.disconnect(onCanWriteAssetsChanged);
     ContextOverlay.contextOverlayClicked.disconnect(openInspectionCertificateQML);
+    ResourceRequestObserver.resourceRequestEvent.disconnect(onResourceRequestEvent);
 
     off();
 }
diff --git a/server-console/src/main.js b/server-console/src/main.js
index f731bacaa6..dc3fbd4333 100644
--- a/server-console/src/main.js
+++ b/server-console/src/main.js
@@ -874,10 +874,6 @@ function onContentLoaded() {
                     hasShownUpdateNotification = true;
                 }
             });
-            notifier.on('click', function(notifierObject, options) {
-                log.debug("Got click", options.url);
-                shell.openExternal(options.url);
-            });
         }
 
         deleteOldFiles(logPath, DELETE_LOG_FILES_OLDER_THAN_X_SECONDS, LOG_FILE_REGEX);
diff --git a/server-console/src/modules/hf-notifications.js b/server-console/src/modules/hf-notifications.js
index b1f337bbc3..8a812625b4 100644
--- a/server-console/src/modules/hf-notifications.js
+++ b/server-console/src/modules/hf-notifications.js
@@ -5,6 +5,8 @@ const process = require('process');
 const hfApp = require('./hf-app');
 const path = require('path');
 const AccountInfo = require('./hf-acctinfo').AccountInfo;
+const url = require('url');
+const shell = require('electron').shell;
 const GetBuildInfo = hfApp.getBuildInfo;
 const buildInfo = GetBuildInfo();
 const osType = os.type();
@@ -154,8 +156,13 @@ function HifiNotifications(config, menuNotificationCallback) {
 
     var _menuNotificationCallback = menuNotificationCallback;
     notifier.on('click', function (notifierObject, options) {
-        StartInterface(options.url);
-        _menuNotificationCallback(options.notificationType, false);
+        const optUrl = url.parse(options.url);
+        if ((optUrl.protocol === "hifi:") || (optUrl.protocol === "hifiapp:")) {
+            StartInterface(options.url);
+            _menuNotificationCallback(options.notificationType, false);
+        } else {
+            shell.openExternal(options.url);
+        }
     });
 }