This Unreal Engine 5.4 video is about getting started with the Tower Actions User Interface.
We start by showing the mouse cursor, and moving on to the Tower Actions Widget Blueprint, and then the Tower Actions Blueprint, which uses a Widget Component. Next, we add the Select and Unselect functions to the Tower Base Blueprint, which will spawn and destroy the Tower Actions Blueprint and User Interface.
https://dev.epicgames.com/community/learning/tutorials/MPPp/unreal-engine-12-tower-actions-user-interface-let-s-make-a-tower-defense-game