I found this gem at sharecg recently: a Dawn clone for the Daz Studio auto-fit feature used on clothing. Once this has been copied to your data directory, two things will happen. First: a "Dawn" morph will become available, in case you want to mix it with your Genesis shapes. Second: the option of "Dawn" will appear at the source list of the auto-fit form when conforming clothing.
This is a very cool thing because now we can fit Dawn clothing to Genesis properly.
All credit goes to askance at sharecg