i just picked up a Z20 and im having a hell of a time getting it set up.  my z10 rgb worked just like you would expect, it saved the profile to the board and i could close unleash and be on my way.
 
anyways, am i wrong or does FN+pg up/dwn not work with custom lighting?   i have it set up for all red with the evga key and flanking side lights set to off.  but i cant dim the lights off/on with the fn key now?  if i go to a preset the keys work as intended.