Copy Monitor: Light Fixtures, Part 3

One more post on the Copy/Monitor tool in conjunction with light fixture. This one has to do with the limitation that linked families cannot cut anything in the host model

When the light fixtures are in the MEP model, and the ceiling is in the architectural model (which is how our models are always done) you end up with two graphical issues...

1. The light fixture does not cut the ceiling, so renderings and VR are not very good looking.
   
2. In the reflected ceiling plans (RCP) a 2x4 fixture in a ceiling with 2x2 acoustical ceiling tiles (ACT) will have a line run through the fixture as shown in the next image below.

Here is a 3D view, in Revit, showing the overlapping geometry.

Here is one possible solution...

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