How do import large Revit Data into VW ?   When was asked I decided to send me DWGs. It looked fine at first, Only sub 30 Classes, lots of Materials came in.   But none of the Materials are applied to anything by Class or Object. Millions of Symbols for each part, even if there are only 1 or 2 instances. 2 imported DWG Stories wer sub 15 MB each, VW file >200 MB. And it stresses VW's OpenGL as well as C4D.   When trying to estimate what will not be seen and could be deleted to optimize my ModelI realized that the few Classes weren't enough to separate Elements. E.g. a Class for Curtain Wall Glazing, is also used for opaque Acoustic Panels. (Not sure if that should have been just done differently in Revit ?)   I can at least Custom Select the Symbol instances by Name Contains. But am not sure if it is better to degrade Symbols to Objects, As I will get even more "real" separate Objects. But I also can't go into 400 Acoustic Panel Symbols to change their contents Classes ....