How can I call a control input when I click a hud button?

Hello everyone, I am new to UE4 and I am trying to make a touch interface for my test project but I don’t know how can I make a button for my custom INTERACT command inside player’s BP…
I need a UI button to execute a input from keyboard (E key) or a gamepad command (face button bottom) but I can’t find a way to do this… :frowning:

In the character:

In the widget:

After some time I managed to do exactly this lol xD
Anyway thanks a lot, this post can help some ppl with the same problem!