Past Shifts
Why are there past shifts shown in your settings? Here's why:
Past shifts are kept in the system to carry data from an old shift setting.
If a shift was changed spontaneously once in regards of date or time, it becomes a past resp. previous shift.
With this, all reservations saved in this shift before the moment those changes are made would fall from this shift. With this "former" resp. past shift they can be kept in place and you're able to see them displayed in your booqIn/seatIn.