Fronzelneekburm, I think you misunderstood the question.
maxxburman is talking about the OnPressed event of a Button Widget. When the button is “Focusable” and has focus, pressing Gamepad Face Button Bottom will call the event. Similarly, pressing and releasing will call OnClicked. There are lots of good reasons to remap this action, including the fact that Switch and PS4 (in some regions) have the “affirmative” button on the right.
I found this thread because I’m having the same issue (among many others) with UMG’s limited gamepad . 