With DS3 advanced, it isn't possible  (yet) to use your own dynamic clothes. Only dynamic clothes that are sold at the DAZ website can be used. DS3 itself, has only some basic functionality to use the dynamic clothes, for more advanced use you have to buy a plug-in.
Daz is working on a plug-in to make your own dynamic clothes (at least they promised) but the release date is DAZ-soon, which can be between one week and 2 years.
DS3 advanced isn't a bad program although I prefer Poser8 and Poserpro.

Things I really like in DAZ is "puppeteer" (not the same as puppetmaster!) which allows you make a kind of inbetween pose with two different poses, morphfollower which deletes all the poke-troughs with conforming clothing, even when the clothes doesn't have the right morphs for it, and the library.

There are also a lot of animation plug-ins, that are great for animation and what I like much more than poser are the figure-setup tools although they come with a big price tag.

What I don't like in DAZ is the lack of dynamic hair, and I don't like the interface but I think that's my personal taste, because I'm used with the poser interface for over ten years.

DS3 advanced has a lot of potential, but to get the same functionality as poser 8, you have to so many plug-ins that the price is more than poser pro. And although DS3 is also 64bit, it doesn't have separate rendering like poserpro has.

best regards,

Bopper.

-How can you improve things when you don't make mistakes?