In this tutorial, we learn how to capture internal walls in a geometry and also use "Copy Mesh" option without generating pyramid elements. The geometry is that of an office in typical HVAC applications. This is part 8 of 9 part video.
Geometry is available here: https://drive.google.com/file/d/0Bzp_ezWs3z-GQmh3WkprR0NWYTQ/view?usp=sharing
