Originally Posted by
switters
Okay, thanks. Do I pay for that after I've already bought the ticket? If so, seems there's no way to know if those seats are available prior to purchase?
You can pay for them at the time of purchase. If you have already bought a ticket, then you can use the "manage my bookings" link on the website, and move into one of the "preferred seats". Either way, there is a charge associated with it.