Color code room outlines by wall type.
So for example when modifying walls during a load calc. Exterior walls might be red, partitions blue, and interior walls (no heat transfer) green. This could even be expanded to visually shows with color walls that have windows or doors.
There have been many times when I've had to back check walls that were inadvertently called out as partitions instead of exterior. Color coding would give an instant visual clue where mistakes might have been made.