Hotspots, background "Empty Fills", etc. are by-products of converting the "live" 3D model into 2D drawing entities. Sometimes useless, sometimes not.
David Larrew, AIA, GDLA, GSRC
Architectural Technology Specialist
a r c h i S O L U T I O N S
WIN7-10/ OSX 10.15.7
AC 5.1-25 USA