The method I've used creates and object file - you could always save out the clothing into a prop, which would preserve your material settings, and then try to use that as dynamic item (I'm sure you could also just export and obj from Studio, though you would then have to assign the materials to it). I've not really tried it myself but I know others have used clothing figures as dynamic cloth, they they weren't made for the purpose, so you might need to do some work on the mesh first.