Joe,  I see now that what Glenn said was a little different and that he may or may not have slipped up a bit.  HOWEVER, you said...       We already have that.  It's the Grade Level Marker...the setting I pointed out.  I guess the only thing I failed to point out was that you do need to also make sure the Elevation Reference is set to Grade Level Marker.   And then you said...   Either you're working with a different program or I'm totally missing some