Hi all,

I made a bartop arcade with two GPIO controllers configured and assigned to P1 & P2 respectively. I also have two USB ports connected to the case of the arcade, so I can plug in two retro USB gamepads for those NES games. I configured the 2 USB pads and assigned them to P3 & P4. Is it possible to set up the NES emulator to have it by default use the USB gamepads (P3 & P4) as the default controllers rather than the GPIO controllers? Since the USB pads are not always plugged in, ideally if the USB pads are detected, then the NES will use them, otherwise the GPIO controllers are still usable, is there a feature that can do this?

Thank you for your help in advance.
Kaiyuan