Instead of exporting to Rhino you could try the following:
1. Open 3D view that you want
2. Right Click and select "New 3D Document from 3D"
3. In the new created document do a right click and select the 3D Doc settings that you need to change, specifically the Materials.
4. You can then either Draw lines on top of the existing model. Use copy paste to the side of the original and edit the lines or Save as PDF and edit in Illustrator to taste.
----
Look in the help file for 3D Model settings.
Eduardo Rolón AIA NCARB
AC27 US/INT -> AC08Macbook Pro M1 Max 64GB ram, OS X 10.XX latest
another Moderator