Maintain Payroll Form | Custom Data Field

SUGGESTED

I'm having issues with editing the paycheck form under Utilities- Maintain Payroll Forms. I need to create a new DBMemo/DBPipeline field to show the total hours worked by the employees. At present, the data field dropdown only has total regular hours and total overtime hours, but the field for total hours is missing. I can only select from the options available in the dropdown, but cannot create a new option. Total hours (regular+ overtime+misc) would be retrieved from the employee's time cards.

How do I create a custom data field to source the information from the timecards and add it to the paycheck forms when the payroll is processed?  or how do I edit the DataPipeline?

Need urgent help on this!

Thanks.