Transaction timeout: This is the maximum amount of time that a customer will have to complete a transaction after selecting the tickets. Upon expiration the tickets will be returned back to the inventory, so that is available for other customers for purchase. It applies to Online Store as well as to Box office store. The minimum transaction timeout is 5 minutes and the maximum is 20 minutes which you can select.
Tickets permitted per Order line: Here you can select the minimum ticket and maximum tickets to be allowed for the show per transaction. You can change these settings on an event by event basis from performance page.
Terms & Condition: Here you can add 'Terms & Condition' which would be visible on the Online Store while making the payment.