Lock Fn Key? (K65 RGB)

Is it possible to lock the Fn key using CUE? I'd like a profile to invert F9, F10, F11, F12 and make them act as media keys; holding the Fn key will then treat them as F9, F10 etc



Is this possible?





Thanks





EDIT: I've remapped the media keys easy enough, but I want to retain teh original F key functions when I hold down Fn