While creating a schedule there are shifts that may have warnings of overlapping shifts. Unassign Shifts will quickly undue this without deleting the shift.
Login to the Jolt Web Portal, go to Scheduling > Schedule.
1. Select on Edit
2. Select Unassign Shifts
3. It will give you a warning asking if you are sure.
4. Press OK and your shift warnings will be moved under Unassigned Shifts at the bottom of the schedule.