@Jim-Bridger moderators don't have the ability to adjust group membership, unless they also happen to be owners of said group (which if you're creating a custom group, is doable)
Then they can add and remove users from the group details page.
@zandertrek Not a new feature. Been around for a while. Although less than intuitive to create. I also find many low tech users confused by group chats due to being stuck in the functional fixedness of "private chat". That said, I like 'em. 👍
