A Position is a particular type of job. For example if you have 12 people who
work as cashiers at various times of the day you would have one position called Cashier. If you have
certain cashier shifts that are special and need to be worked by only some of
the cashiers you could create another Position - for example "Cashier-Trainee."
Each schedule view can be set to show or not show the Positions for each
shift.
