Okay, very thank you for reply!
Yes, I tried this script, but I couldn't interact with it correctly, I probably did something wrong... So I have to try to figure it out again.
But Daz3d-Pose-Converter-Standalone is so usefull script, it literally converting 100 poses in just seconds, whereas now you have to do everything manually 🙁
I had that script, but my hard drive crashed with everything valuable.