Allow Users to be added to security groups via a dropdown menu like the notification centre
Just an idea. I've just spend some time trying to sort out our security groups and users permissions. It took me sometime as I had to keep referring back to the user page to see what group each was in and then back to the group page to make the changes.
In my mind it would make much more sense to be able to added users to a security group on the security group page. It could work just like adding users to a notification in notification centre. A dropdown check box would allow to opt users in or out of a security group.
Just a thought.