If you wish to re-order your employees:
Go to the scheduler, select the desired location, then click 'View' --> 'Reorder Employees'
This will open a new modal which allows you to reorder employees either through manual drag-and-drop, or via the drop-down options on the top right of the screen. When you have your desired order, press 'Apply'.
If you have more than one location selected, you can filter them in the location tab in the top left of the pop-out screen.
To re-order locations:
Go onto the scheduler and on the left hand side you will see a list of locations. Click on the location name, drag it and drop it into the new desired position.