As a Blueprint project user,
Man I’m frustrated, I’ve had enough of searching, maybe I’ll just go with Eldany’s hack. It’s simply insane how complicated it is to have a gamepad button click traditional UMG buttons in a context where the Gamepad also controls the mouse cursor, many Triple A titles are doing this BTW (Destiny, Marvel Rivals, ETC). 3D space is a breeze, you can make whatever system you want without the WidgetInteraction Component Everynone mentioned. 2D UMG is near impossible unless you make your own CPP code.
I’ve been using UE since 4.14 ish and this is the biggest headache I’ve had to deal with by far. 70 something threads, no real blueprint solutions, just hacks like the focus mentioned above (good find BTW, but ■■■■ (really? This forum censors “d 4 m n”?, you think your clients are children or something?)).
RAMA had a plugin in 2016 ish and it no longer works.
The other solutions I keep seeing are how CommonUI have AnalogMouse for the gamepad “click” behaviour instead of this focus-only BS approach for gamepads forced with the traditional UMG buttons. Porting over to CommonUI is a big no on year-long projects.