@moogal : For now, I do not intend to make a flexible body management for a character even if the subject interests me and although I started to think about it.
However, there is a subject on which I want to work quickly because VWD has a problem, he hates  the pinching. When a cloth is trapped between two parts of the body, it tends to escape by one side or other. I solved this problem by using the tool "OVERHAUL" by I13 which corrects many of these pinching.
I want to write a function that will run a small dynamic effect when the program imports the body to push the parts that come into interpenetration.
It is quite possible to watch the inertia generated by the movement of a character and transfers it in a mesh deformation.

Interesting...  I was also wondering if the dynamic clothing could work with the existing Poser bullet physics.  This is the hair and clothing I have always wanted from Poser, but I hope there is a way to add realistic bounce and jiggle so the body doesn't look unnaturally rigid.