Thanks, Volker,
I spent a lot of hours I couldn't justifiably bill my client for trying things myself before I gave up. Perhaps dealing with those holes is something that should be added to suggested enhancements. I just talked with a friend who uses SW. He fiddled with the issue while on the phone and concluded he would use weld beads available in parts or assembly to fill in the holes. I asked him if he could unfold what he'd created. By then he'd done some other things and couldn't answer, but said that if it wouldn't unfold he would just suppress the weld beads and then unfold it. So perhaps in Alibre, one could use extrude and extrude cuts to fill in the hole, then suppress them for the flat and unsuppress them for the formed views. Configurations could be used to keep them separated. Anyway, Volker, thanks for giving it a try.