Ok lets start with just having a Village BP. If you drag this out in the Editor it’ll procedurally place a bunch of meshes for buildings around. This makes it quick and easy to create “villages”. This is also not hard to do with ChildActorComponent or StaticMeshComponent.
The problem with this is that the Village Actor will act as one object. You can’t select one of these ChildActors inside the Editor and tweak it’s properties.
If you on the other hand drag a bunch of House BPs out in the world randomly, you can have a different Village BP look for these and use Attach Actor to Actor to attach them to the Village Actor (ie. itself). If done this way you can still select each House individually, but you can also move all of them with the Village Actor. This is what I want, and I think joessu too, but the size of the proverbial village may be too large to effectively drag each house out manually etc.