What I would sugest is to make a displacement map to move existing points relative to the existing mesh.
So you only influence existing points.

For fine work you can use a "real" (the current existing version) displacement map, at say 4096x4096 per material. (Thus giving zillions of micro points.)

But using a proposed displacement map to move exiting points in real life would allow to morph the figure-prop by a map. (if only relative to the surface)
Allow the cloth room to drape around this morphed figure-prop.
Allow the hair room to "hair" the thus morphed mesh. 

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
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