The below example details how we can create an administrator account with restricted rights. In this particular example, the administrator will be able only to add/remove/manage common accounts.
1st Step:Define a new management role in System-->Administrator-->Role Management. The new role will provide only user management capability.
2nd Step:Grant the user management rights to the role
Click the highlighted icon from the right of the newly created role in order to select the rights according to the requirement
3rd Step: Create a new administrator user account in System-->Administrator-->System user
4th Step:Associate the newly created account with the management role created in the first 2 steps.
Click the highlighted icon from the right of the administrator account in order to associate it with the role.
5th Step: Grant service rights to the administrator account
Click the highlighted icon from the right of the administrator account in order to provide the service rights