How to have PTO Accurals without Salary Reducing

Summary

We don't want the PTO to reduce from the salary, but the pto accurals have to be passed to Payroll to be on the payslips

Content

Does anyone know how can we process PTO, but only pass the accurals to payroll.  We don't want the salary to reduce from regular salary, but the system requires you to choose " Reduce from Reg" or Choose a custom rate.  Does anyone know a way we can not reduce the salary by the PTO amount?  We are in R13A using Absence Management and the Payroll Modules.