Does anyone think it'd be possible for PA to change Magnus skill F key to anything like, "Shift + C" or anything else? Doesn't have to be specifically that. I like using my kick at times, or any skills that are also literally "F" key.

The better option for everyone would probably just be to make it so that when you bind magnus skill to a number key, it should still be able to cancel your other unique skills. It's still one key, either "F" or a "# key." Makes really no difference. Currently if you press the key that you bind the magnus skill to, it does not cancel other skills for certain classes. For example, Cut Throat. It does not always cancel things when I want it to; I'd be forced to use the F key. Now I don't originally mind, but that means I also can't use my kick key, or vacuum slash, when I WANT those specific skills to be activated. Magnus skill just seems to be clunky to be using in either spec, (more so in awk but succession as well.)

If its quick slottable for you, put it in a slot, lock it, then assign that slot to a new key by clicking the setting icons right above the slot. G is a good key, you can re-assign your guild interface to / or whatever works for you. that can be done in the interface UI.