My apologies if I am posting in the wrong place-- I couldn't find a more relevant forum.  I'm new to xShape and have noticed that a few days ago when I wanted to create a new sub-D surface, under the "Subdivision" tab I would click "Box" and it would expand to show other primitives as options like cylinder, torus, cone.  Now it just always shows "Box"-- no other shapes are available.  I need to create a sub-D cylinder.  Has my user interface in xShape gotten into some strange state?  How do I get the other shape options back?  Thank you for any help.