I am trying to give players options between arcade controls or handheld controls without any configuration when they switch.

One Idea i had is to map two controllers to the same player (if this is possible). So that pressing left on either controller for player 1 will cause a left input for player 1. The best setup would be a generic USB controller and a gpio controller both mapped to the same player. Alternatively they could both be USB controllers.

Thanks for any ideas.