I'm working on a plan for a mall in Colorado. Unfortunately, when out of plan view, everything is at different elevations. It's giving me a headache.












 
Is there any way to set everything in it's current XY orientation at an elevation of 0?
 
TIA

Please try this tip:
http://www.cadforum.cz/cadforum_en/qaID.asp?tip=872
 
or the Flatten command.