Jamf School Rename Mobile Device Serial Last 4 Digits

Hi Folks,

I would like to rename the school's iPads to a Prefix-%SerialNumber%(last 4 digits)

In the Jamf School Documentation, it stated %SerialNumber%,5% uses first 5 digits of serialnumber. Can't find any variables that gives me last 4 digits.

Anyone have any idea how to do this?