Reply To: Using a Save and Load Hotkey

[Floob]

This
input_enable_hotkey = q

should read

input_enable_hotkey = rshift

on the assumption your arcade stick sends a right shift single on the button you want to use as the enable hotkey.

Then pressing x on your arcade stick (The A button?) should save the game.

The hotkey enable for your usb PS3 controller will be held in the controller config file, so that parts separate. /opt/retropie/configs/all/retroarch-joypads/

Here is a (slightly outdated) video on hotkeys