@baris Thank you

@loopynid here's a better resource: BenchpressJS docs

Thank you.

https://community.nodebb.org/topic/10549/pop-up-message-by-entering-a-category/8

I found the solution. Thanks!!!

I've tried to load my forum with port 8000 (http://*.rhcloud.com:8000) and then in category permissions groups are shown properly. I'll use http://myhost.rhcloud.com:8000 when want to set category permissions. Thanks