One useful facility here is to be able to split shift between people. You may have someone who is only available for the first two days – or is unavailable for one day
So select the role and use the ‘Split Role’ button.
This will divide the role into two and here I have moved one of the shifts to the second person by dragging the left corner of the cell.
Now I can click on the unprocessed position and invite someone for that shift or book them so they share the role