Learn how to update and or replace the UV's on a model.
The following process is not an ideal one, but it works. If you have a suggestion on a better or faster technique please share it with us.
Load in your new UV set onto the model
Name it something simple and unique such as “new.”
Save the new UV set (File > Save As > Support Asset > DSF UV Set File)
Open the new UV set in a text editor
When you reload your model into DAZ Studio it will load the new UV set.