To add or modify an account, the role assigned to your Account must grant you permission to Manage Administrators and Roles.
To add a role:
Right-click the Administrators item and choose Open to Manage.
Right-click the Roles item and choose Add New Role.
In the Attributes dialog, specify the Attributes for the Role.
To modify a role:
Right-click the Administrators item and choose Open to Manage.
Expand the Roles item.
Right-click the role you want to modify, and choose Properties.
In the Properties dialog, make the desired changes.
Note: Any changes you make to the properties of a role apply to all instances of that role name, regardless of whether the role is assigned to accounts. If accounts who have that role assigned are logged in, the changes to the role will take effect the next time they log in to Enterprise Manager.