How to add more than one mod in groups?

I have create a moderator group, but can only add one name in it.
If i want more moderators in the same group, how to do?

Cause i want them in a same group, with same colors ...

Do you keep adding them into the same group, there's a field at bottom of the Group Control Panel to add other members to the group.

If you want more than one group moderator, it's not possible yet but you can suggest it in the suggestion's section above