VC question

Sorry if I missed this one right in front of my face. I've been searching but no dice. How does 3d get added to the VC? in FSDS you "mark" the parts for interior view, How would I do that in a .3ds file?, I was hoping there is a prefix/suffix in the part name. May be I don't understand VC,s? I might just upload the GeeBee without a VC of any kind, but that would be a shame
thanks for your time again,
