I received a Revit file from a client. I have no idea what may have been purged from the file. When I try to cut a section, I am presented with the choice of a Building Section or a Detail Section. The Wall Section is not available.
How do I get access to the wall sections? These are available as families which could be reinstalled.
Wall sections are not "families" per se. They are a type of the Section system family. If you want wall sections, you'll have to duplicate one of the existing styles (Bulidng or Detail) and rename it Wall Section.