Did the rigging and modeling tool make it into Zbrush 3? There was two amazing tools,
one called the volume-rig tool and one called surface-rig tool. The surface-rig tool also allowed you to create a new mesh.
Here is the preview but it’s not longer available. Hmmm!
http://zbrushcentral.com/zbc/showthread.php?t=22256&highlight=preview