We use SW2012, Windows 7 Pro, Acrobat Reader DC latest version

When I export 3D PDF files and open this with Acrobat Reader, all works well but

- in the tool bar 'Views' menu, I only see default view, I cannot choose standerd FRONT, TOP or SIDE views.

- the tree structure does not show actual part names

The main problem is the first. Is a certain setting required to export standard views. I would not think so as the reader shwos an XYZ, so why can't I choose these planes?