@Biscuit: I will watch your tutorial as soon as possible. I'm sure I've plenty of things to learn. Thanks to you!

@Erwin: As I don't know the final position of the character I can't judge if an animation is needed.

"You need simulation for the loin the rest can be fixed" : I was talking about fixing vertices in VWD not in Poser. You select the vertices with the vertice tool of VWD and, in the vertice group, click on 'fixed vertice" if I remember well . The selected vertices will not move anymore. With the selection tools of VWD it takes 10 sec. The chain, jewels are correctly in place after the conforming and posing the character so I fixed them and the simulation will not deform them. I also fixed the first row of the fabric to be sure it don't fall.

This scenario works only for still render : I don't do animation in Poser and use the static simulation in VWD. For me the simpliest roadmap!

"Nota: the loin has 2 layers of polygons: the number of subsamples must be higher to have a better result I think." It's the modeler who decide about this. Some modelers create clothes (cape,..) with only one "layer" of polygons (my wording is not correct for sure ) and other create two " layers" (to generate thickness for example). If I'm correct : standard dynamic clothes in Poser have only one layer