Navisworks clash in 'active view' or 'viewpoint' not in entire file

Hi everyone!

As I have a huge site (by saying huge I mean HUGE site with lots of buildings and its combined into 1 navis file) and want to do a clash test only in particular building, what is the best way to do it without running the test in entire model with tens of linked ifc files?
Is there a way to do a clash test within an ‘active view’ or ‘viewpoint’?

Is there a way to incorporate dynamo to do this trick?

Ps. I don’t have a total site in Revit, so exporting only particular building in nwc won’t work.

Thanks