How do I create a field that has the list of users in ME as its drop down?

How do I create a field that has the list of users in ME as its drop down?

How do I create a field that has the list of users in ME as its drop down list? similarly to the name field on the service catalog field. Is there a way to duplicate default fields and edit them?
                New to ADManager Plus?

                  New to ADSelfService Plus?