How to manage a group of objects in Unreal Engine via blueprint or via c++?

Question

unreal engine

There is a group of objects - 4 solid bodies and 4 light sources directed at them. How can I make them rotate around one given center?
I can manage one object, it's easy, but I can't make a reference per group, instead of one reference per group, a separate reference is added for each member of the group separately.

Answer 1

Actor Blueprint
https://www.youtube.com/watch?v=eJjIAyeltf0&index=21