Configuring Accounting Identity List (GUI)
In the Accounting section, click Add.
In the Quick Setup: AAA Accounting window that is displayed, enter a name for your method list.
Choose the type of authentication as identity, in the Type drop-down list.
Choose the server groups you want to use to authenticate access to your network, from the Available Server Groups list and click > icon to move them to the Assigned Server Groups list.
Click Save & Apply to Device.