Anyway to use the FN key in a macro setting?

I was already having problems getting the key combos to work on my K57 Wireless RGB keyboard to change the lighting profiles, so I figured I would just set them to a macro key so I didn't have to open the icue program every time.

The only problem is that the combo is "FN + any number", and I don't see the function key at all on the add event screen. Can the function key not be set to a macro combination at all or am I just missing it on the list?

Currently running software version 3.25.60 on a 64 bit windows 10 pc