I am completely new to SU coming from ACAD. I am sketching out some foundation walls and when I draw the faces of a crawl space wall then draw the faces of the full basement wall the entities become "associated" with each other i.e. if I move the crawl space wall the full basement wall gets moved with it. Same thing happened when I added a garage slab, it became "associated" with the surrounding foundation walls. How do I avoid this and what am I doing wrong? thanks for any feedback.