I would appreciate having the following Trace View options to help trouble shoot why objects just vanish sometimes:
SHOW TRACE VIEW OF OBJECTS HIDDEN BY CURRENT MODEL VIEW
SHOW TRACE VIEW OF OBJECTS HIDDEN BY CURRENT RENOVATION FILTER
SHOW TRACE VIEW OF OBJECTS HIDDEN BY CURRENT CUT PLANE SETTINGS
SHOW TRACE VIEW OF OBJECTS HIDDEN BY CURRENT LAYER SETTINGS
SHOW TRACE VIEW OF OBJECTS HIDDEN BY THEIR STORY SETTINGS
SHOW TRACE VIEW OF OBJECTS HIDDEN BY THEIR RENOVATION SETTINGS
That last one is different from the other renovation view, because objects can have individual settings to only show up on certain renovation filters. To be able to filter out 2D stuff and images, etc, like the Trace View already does, would speed things along.