App designer menu shortcuts with numpad numbers

Hello,

I'd like to make shortcuts for the menus in the app designer, but if the shortcut is CTRL+1, only the numbers above the the letters work, but not the numpad numbers, how can i fix that (i just want to use the numpad numbers).

I tried the ascii code for the numpad numbers but the app designer doesn't accept it and returns an error saying only a single character can be accepted.

Thx for any input,