Click events on screen space widget

Hi Everyone,
Somebody knows if is possible have a Click event on 3D widget in screen space?
and if yes, how do it?

In alternative, is it possible add a button inside a 3D screen space widget?

This might be what you are looking for.

No, i Need a system to find a way for
having a “On Begin/End Cursor Over” on a 3D Widget
OR
detecting if a 3D widget is hovered or not from the actor blueprint.

@eniac Have you found a solution?