You can convert G3F poses to G2F using a fan-written utility in DS (https://www.daz3d.com/forums/discussion/137491/converting-g3-poses-to-g2-it-works/p1), and then export those to Poser using the Poser Format Exporter utility (https://www.daz3d.com/forums/viewthread/6869/). You then apply them in Poser using DSON. This conversion is time consuming and a PITA (you have to individually name in the export utility and point to the folder for every individual exported pose, and then you have to apply the pose to a figure in Poser and re-save it so you get an icon image), so you REALLY have to want those particular poses. I've gone to the trouble, for example, for i13's daily activity poses for G3F. Genesis 2 poses are close to the Rosetta Stone of poses. They work well with almost any figure, including V4, La Femme, Pauline, PE, Loretta LoRez, and Dawn (plus the analogous male figures) . I have never explored converting G8 poses because they are almost always G3 re-treads.