Drag & Drop from HUD to World

I’m trying to drag an widget item from an inventory over an actor in the world to change its appearance. This is working on click with the mouse using “get Hit Result Under Cursor”, but when i drag an item from the inventory, i can’t find a solution to start the interface blueprint which is starting the events of the actors. Is there a way to get an widgetblueprint items to interact with actors in the scene (drag&drop)? thx for any help