Just found this one in a forum
Notice if you are only interested in using poses from G3F/G8F with V4(.2) characters, there is some free scripts that allow you to copy poses from G8F to V4 (load G8F, load V42, use the script, it transfers it) and even viceversa, and from a little test, they work nicely (though G8F to V42 seems to work well out of the box, the reverse may need small adjustments in some joints, due to the differences between models).
If you combine that, with the scripts that allow to use poses made for G3 on G8, in theory it can give your V4(.2) character access also to all the poses for G3 and G8.
Here's a script
https://www.daz3d.com/forums/discussion/450206/g8f-pose-transfer-to-v4-a4