Create custom command to stop code at any point

Hi All, I am trying to get a piece of macro that will allow me to create a command which ends the macro while running. I know that the standard command is ctrl+break, but I don't want my users to end the macros prematurely so I disabled that command like this:

On Error Goto MyErrorHandler: 
Application.EnableCancelKey = xlErrorHandler 
MyErrorHandler: 
If Err.Number = 18 Then 
    MsgBox "Stop hitting ctrl + break !!!" 
    Resume 
End If

Now I would like to have the option to stop the code while I am running it by creating something else which causes the script to stop. My idea would be something like this but I'm not quite sure how to write it properly:

On Key Press "ctrl+delete" 
Exit Sub