feature request User groups

Just installed this plugin today and played with it for a while, great extention.
I use UAM (https://ww.wp.xz.cn/plugins/user-access-manager/) to restrict access to posts to certain people. It would be nice if there would be a way yo choose these extra groups too as opposed to just user roles or individual users. (Don’t know if it’s possible at all, just an idea).

https://ww.wp.xz.cn/plugins/bnfw/