Before I forget I was having to check some measure and valve contract quantities in a dwg file from Trimble business today and thought QTO would be the way to go. But ran into the issue that you can assign payitems to 3dpolylines but they are not found when you run a report. To get around the issue I had to dumb everything down to 2d but this intruduced a small round.
Regards
Justin Ralston
http://c3dxtreme.blogspot.com/