haven’t done much at all w/ this. but you would need to set up 2 different axis events in your project settings, one for each different event & type of controller.
ie: set up player 1 with movement event setup with the mouse & keyboard & player 2 with the same just setup w/ the xbox controls, from there you can mix or match or just use them for both, you’ll have to set that part up in your game BPs (like char BP etc). once you set the controls up, the game won’t care who uses the events, as far as I know.
hope that makes sense to ya , gl