is there a way to increase and decrease the exposure while in the camera or drawing view?

I have recently gotten a cintiq which is very small and i like to customize my hotkeys to mostly being under my left hand while i work but I’ve come across a strange error, while in the camera view i can Decrease the exposure but i can’t seem to increase it at all. I believe i’ve left the hot keys for the exposure to the defaults for the toon boom studio short cut list