Maybe, select Head and mirror. You need a photo/video camera and good light: No a webcam. Mixed with Anihead, perhaps works fine. The OpenCV engine It is in its infancy, yet to be polished with code... I use python 3.9, and no still works fine, but is a nice way. Better than Mojo from Laylo 3D, who needs a iPhone! 😀
All this is due to the very little information of the Daz API, as well as its script model. This attitude makes it difficult to program serious things for Daz's environment. I'm sick of that lack of transparency.
Normally, these transformations come from morphs, not bones. Like the expressions of a MikuMikuDance model. They can only be fixed with Maya or MotionBuilder. (Or be very patient with modifying the morphs of a Genesis 8 or 8.1 by hand.) ...