Because of the time sensitive nature of purchasing event tickets within a narrow time frame, we believe it is in the best of the customers to limit an order to a single event. We do not want to risk frustrating buyers due to a time-out in the middle of the order check-out process. This is especially the case for events that are reserved seating and operate of one or more seating charts. Specific seats are on hold for a strict 7 minute time frame while the customer completes their order.
With "Packages" enabled, there are ways to bundle general admission events together for purchase in a single order. Packages allow for discounted pricing incentives for multiple events. More information about packages can be found at: http://www.thundertix.com/wiki/TTX/SeasonPackages