Oh I found out how to do it...

1) import the figure's OBJ file into ZBrush.
2) sculpt
3) export OBJ out of ZBrush.
4) load figure in Poser.
5) Poser 2010 menu Figure > Load Full Body Morph
6) Select Body
7) Find new morph dial, set it to 1.000
8) Save figure to the library.

Thank you!

"The best and most beautiful thing in life cannot be seen, not touched, but are felt in the heart."
                                                                                                         

• Helen Keller