Same morph, imported into DS:

This is a morph I'm working on for Dawn 2.  The morph was done in Poser AND Blender.  The end result is a Blender Object "Dawn 2" with a shape key "muscle" (other morphs are other shape keys).  I export the finished shape from Blender as an OBJ and imported it into both Poser and DS.  

(It's a work in progress, not done.  Just started.)

The point is, I can take a shape back and forth between Poser and Blender and, from Blender, produce a morph that can be used in Poser *and* DS.

Of course, if I want to distribute that morph for Poser, then I *do* have to edit files.  But, for creators, that's only a last step.  Being able to move the morph between apps easily is all I've done.  And, if it's something you're just using yourself, you don't have to make it "distributable" :)