diff --git a/CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java b/CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java
index 5392f7a3ba053cc270c5fa1883478b31e56a33ea..6084b578dd17a7f5437120f7071a36eec9599b34 100644
--- a/CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java
+++ b/CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java
@@ -726,84 +726,63 @@ public class MainWindow extends Application {
     }
 
     private void setupTrees() {
+
+        setupTreeRoot(errorView);
         setupSelectListener(errorView);
-        errorView.setRoot(new TreeItem<>());
-        errorView.setCellFactory(param -> new RenderableTreeCell());
 
-        buildingsView.setShowRoot(true);
+        setupTreeRoot(buildingsView);
         setupSelectListener(buildingsView);
-        buildingsView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(buildingsView);
 
-        vegetationView.setShowRoot(true);
+        setupTreeRoot(vegetationView);
         setupSelectListener(vegetationView);
-        vegetationView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(vegetationView);
 
-        transView.setShowRoot(true);
+        setupTreeRoot(transView);
         setupSelectListener(transView);
-        transView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(transView);
 
-        tunnelView.setShowRoot(true);
+        setupTreeRoot(tunnelView);
         setupSelectListener(tunnelView);
-        tunnelView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(tunnelView);
 
-        bridgeView.setShowRoot(true);
+        setupTreeRoot(bridgeView);
         setupSelectListener(bridgeView);
-        bridgeView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(bridgeView);
 
-        waterView.setShowRoot(true);
+        setupTreeRoot(waterView);
         setupSelectListener(waterView);
-        waterView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(waterView);
 
-        terrainView.setShowRoot(true);
+        setupTreeRoot(terrainView);
         setupSelectListener(terrainView);
-        terrainView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(terrainView);
 
-        cityFurnitureView.setShowRoot(true);
+        setupTreeRoot(cityFurnitureView);
         setupSelectListener(cityFurnitureView);
-        cityFurnitureView.setCellFactory(param -> new RenderableTreeCell());
-
+        setupFeatureTabContextMenu(cityFurnitureView);
 
-        otherObjectsView.setShowRoot(true);
+        setupTreeRoot(otherObjectsView);
         setupSelectListener(otherObjectsView);
-        otherObjectsView.setCellFactory(param -> new RenderableTreeCell());
+        setupFeatureTabContextMenu(otherObjectsView);
 
+        setupTreeRoot(vertexView);
         setupSelectListener(vertexView);
-        vertexView.setRoot(new TreeItem<>());
-        vertexView.setCellFactory(param -> new RenderableTreeCell());
 
+        setupTreeRoot(polygonView);
         setupSelectListener(polygonView);
-        polygonView.setRoot(new TreeItem<>());
-        polygonView.setCellFactory(param -> new RenderableTreeCell());
 
+        setupTreeRoot(edgeView);
         setupSelectListener(edgeView);
-        edgeView.setRoot(new TreeItem<>());
-        edgeView.setCellFactory(param -> new RenderableTreeCell());
 
+        setupTreeRoot(attributeView);
         setupSelectListener(attributeView);
-        attributeView.setRoot(new TreeItem<>());
-        attributeView.setCellFactory(param -> new RenderableTreeCell());
-
-        setupContextMenus();
-
     }
 
-    private void setupContextMenus(){
-        setupFeatureTabContextMenu(buildingsView);
-        setupFeatureTabContextMenu(vegetationView);
-        setupFeatureTabContextMenu(transView);
-        setupFeatureTabContextMenu(tunnelView);
-        setupFeatureTabContextMenu(bridgeView);
-        setupFeatureTabContextMenu(waterView);
-        setupFeatureTabContextMenu(terrainView);
-        setupFeatureTabContextMenu(cityFurnitureView);
-        setupFeatureTabContextMenu(otherObjectsView);
+
+    private void setupTreeRoot(TreeView<Renderable> tView){
+        tView.setRoot(new TreeItem<>());
+        tView.setCellFactory(param -> new RenderableTreeCell());
     }
 
     private void setupFeatureTabContextMenu(TreeView<Renderable> featureView) {