It is essential for our organization to limit the # of attendees for each type of ticket (in our case, "Drivers" and "Passengers", as well as "Waitlist", which is something I'm sure everyone has to deal with). This breakdown is so essential that, currently, I am creating 3 different events for every trip of ours, which, obviously, is not terribly efficient. Please add the option to close registration for individual ticket types when individual limits are reached, rather than an aggregate total.