deactivate a group

For more that I look for I do not find the way to deactivate a group. Once activated, I can only delete it. It can not be done?

I didn't know you activated groups, I thought you just create them.

Hello buensumiso!

Yes, you're right there is no way to deactivate the groups via Dolphin interface. You may do it via execution of the following query in your Dolphin database: 

UPDATE `bx_groups_main` SET `status`='pending' WHERE `id`=[any id of desired group] LIMIT 1

Oh, activate equates to approve.