diff --git a/Cube4Fun/Base.lproj/MainMenu.xib b/Cube4Fun/Base.lproj/MainMenu.xib
index 1a22a74..451f384 100644
--- a/Cube4Fun/Base.lproj/MainMenu.xib
+++ b/Cube4Fun/Base.lproj/MainMenu.xib
@@ -149,11 +149,6 @@
                                     <action selector="cut:" target="-1" id="228"/>
                                 </connections>
                             </menuItem>
-                            <menuItem title="Insert" keyEquivalent="i" id="QIf-r2-Qbo" userLabel="Insert">
-                                <connections>
-                                    <action selector="cmdInsertPressed:" target="494" id="i2Y-8n-lla"/>
-                                </connections>
-                            </menuItem>
                             <menuItem title="Copy" keyEquivalent="c" id="197">
                                 <connections>
                                     <action selector="cmdCopyPressed:" target="494" id="ncB-O2-9om"/>
@@ -169,6 +164,16 @@
                                     <action selector="clearLEDs:" target="494" id="3lJ-Lc-QCa"/>
                                 </connections>
                             </menuItem>
+                            <menuItem title="Insert Frame" keyEquivalent="i" id="QIf-r2-Qbo">
+                                <connections>
+                                    <action selector="cmdInsertPressed:" target="494" id="i2Y-8n-lla"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem title="Delete Frame" keyEquivalent="d" id="JW4-A1-fDy">
+                                <connections>
+                                    <action selector="cmdDeletePressed:" target="494" id="CDU-vU-PaH"/>
+                                </connections>
+                            </menuItem>
                             <menuItem title="Select All" hidden="YES" enabled="NO" keyEquivalent="a" id="198">
                                 <connections>
                                     <action selector="selectAll:" target="-1" id="232"/>
diff --git a/Cube4Fun/src/Animations.swift b/Cube4Fun/src/Animations.swift
index 577e3e6..7fbd272 100644
--- a/Cube4Fun/src/Animations.swift
+++ b/Cube4Fun/src/Animations.swift
@@ -235,8 +235,6 @@ class Animations: NSObject {
         var myData: NSMutableData = (self.getAnimation(_animationSelected)).objectForKey(AnimFrames) as! NSMutableData
         var myDataBytes = self.getAnimDataSelected()
 
-        
-        //var myData: [UInt8] = [UInt8]()
         // Get startPositions of the selected frame
         var frameStartPos = (self.getAnimationFrameID()-1)*64
 
@@ -260,17 +258,34 @@ class Animations: NSObject {
         self.clearLEDColor()
     }
     
-    /*
+    
     func deleteDisplFrame() {
+        println("delete frame")
+        
         // Get Array
-        let myData = self.getAnimDataSelected()
+        var myData: NSMutableData = (self.getAnimation(_animationSelected)).objectForKey(AnimFrames) as! NSMutableData
+        var myDataBytes = self.getAnimDataSelected()
+        
         // Get startPositions of the selected frame
         var frameStartPos = (self.getAnimationFrameID()-1)*64
-        for index in 0...64 {
-            myData.removeAtIndex(frameStartPos)  
-        } 
+
+        var lastArrPos: Int = myData.length - 1 - 64
+        println("Framestart: \(frameStartPos)")
+        println("Framelength: \(lastArrPos)")
+        
+        // copy frames (fill deleted frame)
+        while ( frameStartPos <= lastArrPos ) {
+            //            myDataBytes[lastArrPos] = myDataBytes[lastArrPos-64]
+            let myByte: [UInt8] = [myDataBytes[frameStartPos+64]]
+            let bytePosition = NSMakeRange(frameStartPos, 1)
+            myData.replaceBytesInRange(bytePosition, withBytes: myByte)
+            ++frameStartPos
+        }
+        
+        // delete last frame
+        myData.length = myData.length - 64
     }
-    */
+    
 
 
     
diff --git a/Cube4Fun/src/AppDelegate.swift b/Cube4Fun/src/AppDelegate.swift
index 9259ab0..9093d57 100644
--- a/Cube4Fun/src/AppDelegate.swift
+++ b/Cube4Fun/src/AppDelegate.swift
@@ -185,4 +185,18 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSTextFieldDelegate {
         // Update on a hardware
         __animations.sendFrame()
     }
+    
+    @IBAction func cmdDeletePressed(send: AnyObject) {
+        // Check if we have more than one frame
+        if __animations.getAnimationFrameCount() > 1 {
+            __animations.deleteDisplFrame()
+            
+            // Update visual
+            _gameView.updateLEDFrame()
+            _gameView.updateButtonVisibility()
+            
+            // Update on a hardware
+            __animations.sendFrame()
+        }
+    }
 }