Timerack time entry doesn't let you specify time worked as Regular hours, Overtime hours, or Accruable Benefit Hours Used. Therefore, we strongly recommend that you don't create separate payroll items for Overtime Hours, PTO, Vacation, or Sick Pay, etc.
Accruable benefits need to be set up as accruable benefits, not as pay items.
Regular, Overtime, Double-time, and Accruable Benefit hours are imported to the employee's default payroll item as they are set up in Timerack. The hours can't be mapped to another payroll item in Accounting CS.