I don't believe that's possible.
As far as I know that particular field is populated only for Wireless clients when the AP is assigned to a location (i.e. a map within a campus) and you have a Mobility Services Engine (MSE).
If you pull up the user 360 degree view (hover your mouse over username and click the icon that appears) however, you will get the switch and port to which they are connected (among other things). That more or less serves the same purpose.
You can also enter any MAC address or IP address (or username if you have wired ISE integration) in the PI search bar and drill straight to the details for that client.
