86 files changed, 7967 insertions, 21929 deletions

diff --git a/js/helper-classes/3D/draw-utils.js b/js/helper-classes/3D/draw-utils.js
index 59da411f..a5428ea3 100755
--- a/js/helper-classes/3D/draw-utils.js
+++ b/js/helper-classes/3D/draw-utils.js
@@ -109,10 +109,10 @@ var DrawUtils = exports.DrawUtils = Montage.create(Component, {
                         this._gridOrigin = [0,0];       // 2D plane space point
 
             this.eventManager.addEventListener("elementAdded", this, false);
-            this.eventManager.addEventListener("elementDeleted", this, false);
-            this.eventManager.addEventListener("deleteSelection", this, false);
+            this.eventManager.addEventListener("elementsRemoved", this, false);
             this.eventManager.addEventListener("elementChange", this, false);
             this.eventManager.addEventListener("closeDocument", this, false);
+            this.eventManager.addEventListener("elementReplaced", this, false);
                 }
         },
 
@@ -139,46 +139,83 @@ var DrawUtils = exports.DrawUtils = Montage.create(Component, {
     handleCloseDocument:{
         value: function() {
             if(this.application.ninja.documentController._documents.length === 0){
-                this._eltArray = null;
-                this._planesArray = null;
+                this._eltArray.length = 0;
+                this._planesArray.length = 0;
             }
         }
     },
 
     handleElementAdded: {
         value: function(event) {
-            this.addElement(event.detail);
+            var elements = event.detail;
+
+            if(Array.isArray(elements)) {
+                elements.forEach(function(element) {
+                    this.addElement(element);
+                }, this);
+            } else {
+                this.addElement(elements);
+            }
+
             this.drawWorkingPlane();
         }
     },
 
-    handleElementDeleted: {
+    handleElementsRemoved: {
         value: function(event) {
-            this.removeElement(event.detail);
+            var elements = event.detail;
+
+            if(Array.isArray(elements)) {
+                elements = Array.prototype.slice.call(elements, 0);
+                elements.forEach(function(element) {
+                    this.removeElement(element);
+                }, this);
+            } else {
+                this.removeElement(elements);
+            }
+
+            this.drawWorkingPlane();
         }
     },
 
-    handleDeleteSelection: {
+    handleElementReplaced: {
         value: function(event) {