Grouping Actors: Hide, Show, Access Them, etc

To group actors in the Editor, you have Groups, Parenting and Folders. But I cannot understand how to uses them in real time as a group.

In Unity, for example if you parent game objects, you can treat the parent game object as one (for example hide it, move it, scale it, etc) and it will affect to the childs. You can also do a recursive get components to the parent and access the childs components.

How I can do something similar in UE4 ?