To add a new agent, you can click on the Green '+New Agent' tab from the Agents display or the '+New Agent' from the Agent menu on the Dashboard.  A new screen will come on that allows the administrator to add more information for a new Agent.  You can add a 'New Agent' Username and Password as needed.

'New Agent' enables you to add a new agent or delete agents. You can also set the access permissions for your agents.