Thank you for your suggestion. This is a very good idea that I have not heard of before. I will look up more info on mesh sockets tonight. It seems like this way, i can work on the finished “product” as if it is just one building.
Would you also know if it is possible to turn these into instances or destructables? I will use some destructables in my game allthough it is not needed for all of the buildings. Perhaps as a workaround you should be able to convert the building into a different destructable mesh via blueprint.