Some questions abou OQ addon

Hello!
I have few questions about OQ addon:
1. There is option to hide any raid on my will ("X" button). But nothing happens if i ckick on it with LMB. (RMB=ignore RL). Is it only ignore option or something works bad for me? I just want to hide the premades which don't sutisfy me but not ignore RL for nothing =)
2. I want to know why sometimes nothing happens when i clicked to queue someone. Usually this premade highlights green or i see error about full waitlist (i'm useing filter "only matching premades"). But sometimes no actions are done after clicking. What problem can it be?
3. I often see info about BG/RBG status in premades. How can i do the same? Any plugin or what?
Thanks for the attention and sorry for my poor language =) Waiting for u'r answers!