diff --git a/src/GUI.py b/src/GUI.py
index b930786..0be7de7 100644
--- a/src/GUI.py
+++ b/src/GUI.py
@@ -55,7 +55,7 @@ class GUI:
 
 
         test_menu = tk.Menu(menu, tearoff=0)
-        menu.add_cascade(label="Filters", menu=test_menu)
+        menu.add_cascade(label="Test", menu=test_menu)
         for manipulation in GetImageManipulationList():
             test_menu.add_command(
                 label=manipulation.getManipulationName(),
@@ -63,24 +63,29 @@ class GUI:
             )
 
         # Manual Test menu listing all manipulations explicitly
-        manual_menu = tk.Menu(menu, tearoff=0)
-        menu.add_cascade(label="Test", menu=manual_menu)
-        manual_menu.add_command(label="Padding", command=partial(self._applyManipulation, Padding(), {"border_width": 50}))
-        manual_menu.add_command(label="Crop", command=partial(self._applyManipulation, CropImage()))
-        manual_menu.add_command(label="Resize", command=partial(self._applyManipulation, ResizeImage(), {"width": 200, "height": 200}))
-        manual_menu.add_command(label="Copy", command=partial(self._applyManipulation, CopyImage()))
-        manual_menu.add_command(label="Greyscale", command=partial(self._applyManipulation, Grayscale()))
-        manual_menu.add_command(label="HSV", command=partial(self._applyManipulation, HSV()))
-        manual_menu.add_command(label="Hue Shifted", command=partial(self._applyManipulation, HueShift(), {"hue": 50}))
-        manual_menu.add_command(label="Smoothed", command=partial(self._applyManipulation, BoxBlur(), {"ksize": 15}))
-        manual_menu.add_command(label="Rotated", command=partial(self._applyManipulation, RotateImage(), {"angle": 90}))
-        manual_menu.add_command(label="Flip (Horizontal)", command=partial(self._applyManipulation, FlipImage(), {"mode": "horizontal"}))
-        manual_menu.add_command(label="Flip (Vertical)", command=partial(self._applyManipulation, FlipImage(), {"mode": "vertical"}))
-        manual_menu.add_command(label="Color Adjust", command=partial(self._applyManipulation, ColorAdjust(), {"brightness": 10, "contrast": 1.2, "saturation": 1.1}))
-        manual_menu.add_command(label="Gaussian Blur", command=partial(self._applyManipulation, GaussianBlur(), {"ksize": 5}))
-        manual_menu.add_command(label="Sobel Edge", command=partial(self._applyManipulation, SobelEdge(), {"dx": 1, "dy": 0, "ksize": 3}))
-        manual_menu.add_command(label="Binary Threshold", command=partial(self._applyManipulation, BinaryThreshold(), {"thresh": 127}))
-        manual_menu.add_command(label="Histogram Threshold", command=partial(self._applyManipulation, HistogramThreshold()))
+#        manual_menu = tk.Menu(menu, tearoff=0)
+#        menu.add_cascade(label="Test", menu=manual_menu)
+#        manual_menu.add_command(label="Padding", command=partial(self._applyManipulation, Padding(), {"border_width": 50}))
+#        manual_menu.add_command(label="Crop", command=partial(self._applyManipulation, CropImage()))
+#        manual_menu.add_command(label="Resize", command=partial(self._applyManipulation, ResizeImage(), {"width": 200, "height": 200}))
+#        manual_menu.add_command(label="Copy", command=partial(self._applyManipulation, CopyImage()))
+#        manual_menu.add_command(label="Greyscale", command=partial(self._applyManipulation, Grayscale()))
+#        manual_menu.add_command(label="HSV", command=partial(self._applyManipulation, HSV()))
+#        manual_menu.add_command(label="Hue Shifted", command=partial(self._applyManipulation, HueShift(), {"hue": 50}))
+#        manual_menu.add_command(label="Smoothed", command=partial(self._applyManipulation, BoxBlur(), {"ksize": 15}))
+#        manual_menu.add_command(label="Rotated", command=partial(self._applyManipulation, RotateImage(), {"angle": 90}))
+#        manual_menu.add_command(label="Flip (Horizontal)", command=partial(self._applyManipulation, FlipImage(), {"mode": "horizontal"}))
+#        manual_menu.add_command(label="Flip (Vertical)", command=partial(self._applyManipulation, FlipImage(), {"mode": "vertical"}))
+#        manual_menu.add_command(label="Color Adjust", command=partial(self._applyManipulation, ColorAdjust(), {"brightness": 10, "contrast": 1.2, "saturation": 1.1}))
+#        manual_menu.add_command(label="Gaussian Blur", command=partial(self._applyManipulation, GaussianBlur(), {"ksize": 5}))
+#        manual_menu.add_command(label="Sobel Edge", command=partial(self._applyManipulation, SobelEdge(), {"dx": 1, "dy": 0, "ksize": 3}))
+#        manual_menu.add_command(label="Binary Threshold", command=partial(self._applyManipulation, BinaryThreshold(), {"thresh": 127}))
+#        manual_menu.add_command(label="Histogram Threshold", command=partial(self._applyManipulation, HistogramThreshold()))
+
+
+        edit_menu = tk.Menu(menu, tearoff=0)
+        menu.add_cascade(label="Edit", menu=edit_menu)
+        edit_menu.add_command(label="Undo", accelerator="Ctrl+Z", command=lambda: self._undo())
 
         # Frame to hold image
         imgframe = tk.Frame(root, width=500, height=500, bg="lightgray", relief="sunken", bd=2)