Mcupp72

Hello! I am designing a house that has two main sections two it. I am trying to make it so that one of the sections (both square shaped and connected) has three floors, and the other section only has two floors. Every time I add a new floor it adds it to both sections. I am not sure how to customize each section. Hopefully this makes sense from the way I am describing it. Any help would be greatly appreciated. Thank you!!