Step 1: Go to Portal and click on Plus Icon    on the main menu.

Under Schedules Module, select Delete Shifts.

Step 2: Select your dates search criteria and the officer name. Click Search.

Dates are mandatory to complete, otherwise will not retrieve any results.

Step 3:  Make your selection by ticking on the boxes of the shifts you want to reassign and clicking Delete Assignments at bottom of page.

You can select ALL on the list by clicking this box:

To deselect ALL click on this box:

NOTE: You can also delete a shift assignment via Guard Post Scheduling menu by clicking on the shift itself.