Berry, I am new to AC(just about.2 year over), even I have revit (10 years) and autoCAD (20 years). So I try to go thru the Manuel and try to understand as much as possible. When I went thru the Manuel, I found this feature and felt it is good feature to me. Because City plan checker always ask us to label the space in the section which I don't really agree with them. but they acting as robot.