I created simple cylinder and unwrapped it so that one part of UV is isolated
Then i export object as *.obj file with following settings
And import object in Zbrush. Go to “Polygroups: UV Groups” and nothing happen.
I guess i do something wrong, but i can not figure out what is the problem.
Unfortunately i can not attach *.zpr file, so here is link to it https://cloud.mail.ru/public/8kkv/Rey8DZcTu
UPD: Problem solved thanks to this video https://vimeo.com/33068474 I need to use “Polygroups: Autogroups with UV” instead of “Polygroups: UV Groups”. Do not know why.
Anyway may be this topic will be of help for someone else. So i do not delete it.