Another option is to run the skirt through the Cloth Room, it's far easier than re-rigging the outfit, and can produce some fairly realistic results. No need to export/import anything either.

If you have one of the Morphing Fantasy Dresses from DAZ, try it out with that first, works good even for standing poses.

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If you're joking that's just cruel, but if you're being sarcastic, that's even worse.