Group creator power.

Adrianna • Momma to a perfect little prince
Could you make it a possibility for the person who created the group to be able to delete other people's comments and have more control over who joins the group?
I'm having a problem with this one female to the point where no one wants to post in my group because of her rude comments. I've reported them, flagged them, I even asked her to stop and she just won't. There's not a whole lot of groups for us teens and she's making it to where teens who usually post and ask questions, aren't talking. Thank you.