Attached Link: http://www.senntient.com/ubb/zfaq10.html

Nope, not the interface! It's the appalling lack of good documentation, coupled with the fact that the features you mention were just added a couple of months ago, and nobody seems quite sure how to do what you want yet. Certainly, the people at Pixologic did not originally foresee ZBrush for the same use as "Painter 3D", but the potential is there. They also didn't see it making morph targets, but the potential is there for that as well. For now, you should keep your eye on the Zacademy (http://www.senntient.com/ubb/zfaq10.html) What information that is usfull is there. -SMT

I'd rather stay in my lane than lay in my stain!