diff --git a/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPanelMediator.java b/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPanelMediator.java
index a5216236..3e2046f9 100644
--- a/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPanelMediator.java
+++ b/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPanelMediator.java
@@ -63,7 +63,6 @@ public class TiledPanelMediator extends Mediator<TiledPanel> {
         return new String[]{
                 MsgAPI.SCENE_LOADED,
                 TiledPlugin.TILE_ADDED,
-                TiledPlugin.IMAGE_BUNDLE_DROP_SINGLE,
                 TiledPlugin.TILE_SELECTED,
                 TiledPlugin.ACTION_DELETE_TILE,
                 TiledPlugin.ACTION_SET_GRID_SIZE_FROM_LIST,
@@ -72,6 +71,7 @@ public class TiledPanelMediator extends Mediator<TiledPanel> {
                 TiledPlugin.GRID_CHANGED,
                 SettingsTab.OK_BTN_CLICKED,
                 TiledPlugin.ACTION_SET_GRID_SIZE_FROM_ITEM,
+                MsgAPI.IMAGE_BUNDLE_DROP_SINGLE,
                 MsgAPI.ACTION_DELETE_IMAGE_RESOURCE,
                 MsgAPI.TOOL_SELECTED,
                 MsgAPI.ACTION_KEY_DOWN
@@ -111,7 +111,7 @@ public class TiledPanelMediator extends Mediator<TiledPanel> {
                         if (type == EntityFactory.IMAGE_TYPE) {
                         	// ensure that all selected images are dropped
                         	// the respective listener is responsible for dropping one-by-one, since he tracks the selected ones
-                        	tiledPlugin.facade.sendNotification(TiledPlugin.IMAGE_BUNDLE_DROP, new Object[]{tileName, type});
+                        	tiledPlugin.facade.sendNotification(MsgAPI.IMAGE_BUNDLE_DROP, new Object[]{tileName, type});
                         }
                     }
                 };
@@ -120,7 +120,7 @@ public class TiledPanelMediator extends Mediator<TiledPanel> {
                 viewComponent.setEngine(engine);
                 viewComponent.setFixedPosition();
                 break;
-            case TiledPlugin.IMAGE_BUNDLE_DROP_SINGLE:
+            case MsgAPI.IMAGE_BUNDLE_DROP_SINGLE:
             	// aliasing the drop from the main project
             case TiledPlugin.TILE_ADDED:
                 Object[] payload = notification.getBody();
diff --git a/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPlugin.java b/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPlugin.java
index 12e77eb3..77262acc 100644
--- a/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPlugin.java
+++ b/plugin-tiled/src/main/java/games/rednblack/editor/plugin/tiled/TiledPlugin.java
@@ -67,9 +67,6 @@ public class TiledPlugin extends H2DPluginAdapter {
     public static final String TILE_GRID_OFFSET_ADDED         = CLASS_NAME + ".TILE_GRID_OFFSET_ADDED";
     public static final String ACTION_SET_GRID_SIZE_FROM_ITEM = CLASS_NAME + ".ACTION_SET_GRID_SIZE_FROM_ITEM";
     public static final String ACTION_SET_GRID_SIZE_FROM_LIST = CLASS_NAME + ".ACTION_SET_GRID_SIZE_FROM_LIST";
-    // notification from the main project
-    public static final String IMAGE_BUNDLE_DROP_SINGLE       = "games.rednblack.editor.view.ui.box.UIResourcesBoxMediator.IMAGE_BUNDLE_DROP_SINGLE";
-    public static final String IMAGE_BUNDLE_DROP			  = "games.rednblack.editor.view.ui.box.UIResourcesBoxMediator.IMAGE_BUNDLE_DROP";
     //-------end--------//
 
     public static final String TILE_TAG = "TILE";
diff --git a/src/main/java/games/rednblack/editor/view/ui/ImageResourceSelectionUIMediator.java b/src/main/java/games/rednblack/editor/view/ui/ImageResourceSelectionUIMediator.java
index 78ccba95..e71e98da 100644
--- a/src/main/java/games/rednblack/editor/view/ui/ImageResourceSelectionUIMediator.java
+++ b/src/main/java/games/rednblack/editor/view/ui/ImageResourceSelectionUIMediator.java
@@ -15,6 +15,7 @@ import games.rednblack.editor.HyperLap2DFacade;
 import games.rednblack.editor.view.ui.box.UIResourcesBoxMediator;
 import games.rednblack.editor.view.ui.box.resourcespanel.UIImagesTab;
 import games.rednblack.editor.view.ui.box.resourcespanel.draggable.box.ImageResource;
+import games.rednblack.h2d.common.MsgAPI;
 
 /**
  * This mediator is part of the behavior that allows multiple images to be selected and dropped to other panels (like the GridTilesTab from the tiles plugin).
@@ -47,7 +48,7 @@ public class ImageResourceSelectionUIMediator extends Mediator<ImageResource>  {
     public String[] listNotificationInterests() {
         return new String[]{
         		UIResourcesBoxMediator.IMAGE_LEFT_CLICK,
-        		UIResourcesBoxMediator.IMAGE_BUNDLE_DROP,
+        		MsgAPI.IMAGE_BUNDLE_DROP,
         		UIResourcesBoxMediator.IMAGE_TABLE_UPDATED
         };
     }
@@ -76,13 +77,13 @@ public class ImageResourceSelectionUIMediator extends Mediator<ImageResource>  {
 	        	
 	        	imageResourcePreviousClick = imageResource;
 	        	break;
-	        case UIResourcesBoxMediator.IMAGE_BUNDLE_DROP:
+	        case MsgAPI.IMAGE_BUNDLE_DROP:
 	        	Set<String> nameSet = new HashSet<>(imageResourceSelectedSet);
 	        	// remove the dropped one, so that it is not added twice
 	        	Object[] payloadBody = notification.getBody();
 	        	nameSet.remove(payloadBody[0]);
 	        	for (String name : nameSet) {
-	        		HyperLap2DFacade.getInstance().sendNotification(UIResourcesBoxMediator.IMAGE_BUNDLE_DROP_SINGLE, new Object[] {name, payloadBody[1]});
+	        		HyperLap2DFacade.getInstance().sendNotification(MsgAPI.IMAGE_BUNDLE_DROP_SINGLE, new Object[] {name, payloadBody[1]});
 	        	}
 	        	break;
 	        case UIResourcesBoxMediator.IMAGE_TABLE_UPDATED:
diff --git a/src/main/java/games/rednblack/editor/view/ui/box/UIResourcesBoxMediator.java b/src/main/java/games/rednblack/editor/view/ui/box/UIResourcesBoxMediator.java
index a7505c6e..711b9be4 100644
--- a/src/main/java/games/rednblack/editor/view/ui/box/UIResourcesBoxMediator.java
+++ b/src/main/java/games/rednblack/editor/view/ui/box/UIResourcesBoxMediator.java
@@ -46,9 +46,6 @@ public class UIResourcesBoxMediator extends PanelMediator<UIResourcesBox> {
     private static final String PREFIX = "games.rednblack.editor.view.ui.box.UIResourcesBoxMediator";
 
     public static final String IMAGE_LEFT_CLICK = PREFIX + ".IMAGE_LEFT_CLICK";
-    public static final String IMAGE_BUNDLE_DROP = PREFIX + ".IMAGE_BUNDLE_DROP";
-	public static final String IMAGE_BUNDLE_DROP_SINGLE = PREFIX + ".IMAGE_BUNDLE_DROP_SINGLE";
-	
 
     public static final String SHIFT_CTRL_EVENT_TYPE = PREFIX + ".SHIFT_CTRL_EVENT_TYPE";
     public static final String SHIFT_EVENT_TYPE = PREFIX + ".SHIFT_EVENT_TYPE";