Attaching Box Collision to Default Scene Root?

If I can do it in blueprints, how is that not possible to do in C++

I tried what you said but when I bring the actor in the world it doesn’t have the white sphere on the object that occurs when creating a blueprint class. This object does not have a static mesh and without the white sphere it is annoying to click on in the scene. See picture below. That’s essentially the problem I am trying to solve.

unreal