Hello, I'm new to this forum and I would like to have some help switching key functions when using the FN button on my laptop (Toshiba Satellite C855). For example, to change my brightness, I simply just press F2 or F3, but to use F2 and F3, I have to hold FN. And when I try to close tabs on a browser, I would have to hold FN, press Ctrl or Alt and press F4. I'm a gamer and reaching down to FN and to press one of the F's while focusing is harder than tapping the key. If anyone can help me, I would appreciate very much!