First, here are the screenshots showing the BattleUI buttons and the programming behind the “Attack” button.
Right now, this is all there is under the EndTurn function, which is on the player character BP.
Though I just tested and the widget seems to appear and disappear only when called. But I could have sworn that widget would stack on top of itself. It might be because there’s only one enemy and one player character and I once had two enemies. I’m just not sure how to make this work for multiple characters in the same battle sequence.