From Daz To Belnder Hd Morphs

Hi, I have imported a Daz model into Blender.
Now I want to export the hd morphs of the model.
Somewhere i have read that you can export the model in Daz with a high subdivision as an obj and import it in Blender. There you can align the imported model with the high subdivision obj. But i cant remember how to do that. Maybe someone can help.