Cadeplayer05

I was running launchbox, but if i can remap the keyboard I’ll upgrade to BB

My arcade cabinet has buttons that when pressed show a letter, for example up on my joystick is the up button on the keyboard. How can i change the controls so i can scroll through and launch games without using the actual keyboard? Tried to do it in the remapping section but apparently that only works with controllers and not key inputs. Any help?