I wanted to add extra keys for L and R, which I feel more handy in games games that doesnt require press 2 keys to a specific action, so my plan was using Y key as L and X as R.
So i edited the “/opt/retropie/configs/gba/retroarch.cfg” :
input_player1_y = input_l_btn
input_player1_x = input_r_btn
and
input_player1_y = input_l
input_player1_x = input_r
but none of those situations did worked…
I haven’t put specific values since i use different gamepads