The same with the resolution fix.
AFAIK only the keys "F9", "F10" & "F11" are disabled. If you change these key's it may be work.
Maybe this can help you:
[REL] Setkeys and GWX 3.0
I didn't try it, because I'm on patrol, but I wanted to change the flak cycle function to "f" and the deck gun to "g".
EDIT: I've just changed the keys and it works.