Login to the Cloud Control Panel
In the list of servers, locate the name of the server you wish to change.
At the left of server's name, click the cog to open a list of availiable actions.
From the drop-down menu, click Change...
This article explains how to add, disable, and delete an administrator through the Cloud Office control panel. An email administrator can contact support, add mailboxes, unlock accounts, and so on. You can also set limitations...