About Shaper program and multi-part morph,

I'm out, and can't access my 3D programs now. So It may not precise, but my workflow is:

.Export figure geometry from Poser.
 Check 'Include Body Part Name' only, uncheck all other.
 DO NOT check 'weld' and 'As morph target' options.

.Load obj file to Shaper
 Special Function -> Fusion
 This unified all body part as one part, and weld vertices.
  Save.

.In any modelar program, modify figure object.
 DO NOT add/remove vertices/edges/polygons.
 Vertices order is not important.
  Save obj.

.Load Modified obj to Shaper
 Special Function -> To Original
  This restore original body parts.
  Save obj.

.Load original figure cr2 file to PFE.
 Tools -> Create Morph.
 Specify modified obj file from Shaper.
 If you want to make ValueParm in body, check Full Body Morph option.
 Save new Cr2 file as modified figure.

 Done.