There’s a tutorial on this somewhere on you tube. If I find it I’ll post it. But what you want is a Function that calls ‘interact’ on objects that have that event (I believe) attached to them. Then when you call that function each type of object has it’s own type of code that it runs. It’s an Unreal Engine Tutorial so you could start looking on that channel but Interactivity was definitely in the title so if you search for UE4 Interactivity you’ll come across it.