In Timesheets, you can view retros in the Pay panel, in the Retros subtab. If you click the Retros sub-tab when no retros exist for a transmitted period, Dayforce shows the transmitted pay details in the Current row, and $0.00 in the Retro row:
As you add the retro adjustments in the timesheet, Dayforce adds the retro details to the Current row:
When you click Save and reload the timesheet, Dayforce moves the retro information from the Current row to the Retro row, so that the Current row once again shows the transmitted pay details: