When creating events, you can choose from three options:

1) “Allotment per ticket category”: Here you can set the allotments per ticket category yourself and adjust them manually at any time.
2) “Allotment for the entire event”: Here you can define an overall allotment for the entire event.
3) “Sale by seating chart”: With the seating chart option, the ticket allotment depends on the seating plan.