Administrator users groups
System > Users > User Groups
For each one of the administrator accounts you can specify which areas of the Administration Panel they will be allowed to go to via Permissions. For example, you may have a login created for your Webmaster and you need to restrict them from accessing your customer's information. Alternately, you may want your sales staff to have access to customers and orders, but not to design aspects of the site.
Restrict Administrator access to certain parts of the admin. You can allow users to SEE certain parts or MODIFY others.
To add a new User Group click the + button