How can I complete additional future pays?

Note

For example, a period end date for a fortnightly pay run is 10/12/2021 and there is an additional future pay that needs to be done after this date on 15/12/2021. You can't create an additional period end date of 15/12/2021. You can create an additional payroll calendar for a fortnightly pay run with a period end date of 9/12/2021. Process additional pays ensuring the Payroll HRM > Payroll > Pay Run Processing > Create Bank File 'Bank File Processing Date' field and Payroll HRM > Payroll > Pay Run Processing > Pay Run Reset 'Payment Date' field is the 15/12/2021.