You need to get the keyboard remap code, you might have to do some stuff on your own. The brightness setting suck for sure. I've looked for a solution to this myself. I suggest you use f.lux if you don't already as well.
In order to do this, you must flash the bios or something, and you might as well do the battery mod so you can use aftermarket batteries as well.
I know there is a program you can buy to do this as well. https://inchwest.com/hotkeycontrol/