Attaching actors to each other in the world outliner not make them children in c++?

I have groups of objects attached to each other in a hierarchy in the world outliner. In c++ I want to use this hierarchy but when I read in the Children variable its empty. Are the attachments in the world outliner used purely for transforms in the level?

Yes, it’s purely for the editor!

That’s unfortunate. I was really hoping it worked like Unity. I’ll just have to create the hierarchy another way. Thanks