How do I change an employee's vacation hourly rate?

I've attached a list of all our vacation-related payroll items and I don't see "Vacation Hourly Rate"

On the employee's final pay, we attempted to enter a negative amount under "VacPay-Accrual Paid Out" to show they were paying back an amount in arrears, but QuickBooks didn't let us, so we had to find a work around.