Add parameter to Generate payslips and print that in payslip

Summary:

Requirement to add text parameter to Generate payslips and print that in payslip.

I added parameter to payroll flow pattern for Generate payslip but to reflect that in payslip I need that in XML output of Generate Payslip .

XMLPSERVER doesn't show customize option for 'Payslip Bursting Data Model'.

How to make this requirement work ?

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