I think, that it is not an answer.

If you want modeling hybrid you should remember, then border between conformed and dynamic parts will be visible. Conformed parts should be "draped" in modeling software. Then not all clothing can be hybrid. RobynsVeil jeans looks ok, because constrained group is selected where jeans are sewed. Another groups which can be used as constrained/choreographed are belts, cuffs, welts.

Easiest is skirt. You should just create mesh. Fold belt area and select it as an separate group or separate material (depends of software which you use).

In Poser load created obj. Go to setup room create/load hip bone. If it is necessary create/load abdomen thighs etc. Rest was explained above.

More advanced are shirts robes etc. Dynamic group does not need be "open" like skirt bottom. You can create dynamic sleeves with tight cuffs.

If you create this kind of model must remember to create one more loop of vertices next to start and end of dynamic part of cloth. In this case next to collar and wrist.

More explanation with samples:

• create conformed, thight vest. (conformed)

• create loose sleeves joined to vest. (dynamic)

• on the ends of sleeves create thight cuffs. (conformed)

Vest and cuffs should be folded/draped in modeling software, sleeves can be just simple "pipe" (ofcourse you can add some folds for better results)

In setup room select sleeves as arms/shoulder (depends of figure) and cuffs as forearms.

In clothing room Poser 7 default select edges of body part as choreographed group. If not you must select vertices on edges manually. Mentioned above additional vertices make it easier and give better (more smooth) results.