This will not be much help, but using this key receiver . . .
	
	
	
	
	
	
	
	
	
		Public Sub key_KeyPressed (KeyCode As String) As Boolean
    Log("Key received = " & KeyCode)
End Sub
	 
	
	
		
	
 . . . I get the Log message . . .
	
	
	
	
	
So there does not appear to be anything special about the Insert key.
The game view helper is declared as follows, but I am sure that you have done the same . . .
	
	
	
	
	
	
	
	
	
		    Private gvh As GameViewHelper
    . . .
    . . .   
    gvh.AddKeyListener("key", MainForm)