This tip might have already appeared in the forums but unfortunately I don't plan to read through ever post about z values to find out. But anyway something to share for those of you who would like a shortcut to placing z values in wire frame.
Once in wire frame you can move and item such as a person or helicopter, etc up or down to set its z value by holding the LEFT SHIRT key and then using arrow keys to move item.
Z Value in Wire frame=LEFT SHIFT+ARROW KEYS.
[Edited on 10-19-2003 by Charger]