From the Supervisor Work Desk select "timecards" under the approval screen
On the timecard approval screen the supervisor has the ability to see "less detail" or expand to "more detail"
The shop supervisor selects the check box and can either "approve" or "reject" an employees timecard. If the timecard is rejected it will go back to the employees workdesk in their "rejected timecards" query
Once the employee resubmits their reject time card it will appear in the approval query again