I would like to be able to send an email to everyone who has registered for a particular event (for example, a reminder email 2 days before the event). I can see how to schedule calendar emails and send a list of events within a particular time period, but not one specific event. Within the event information, I can't see how to send anything but an invitation.
Ideally, I would like to be able to send an email to the registrants without having to add them all to our address book - we have so many events that even with sub-groups, the address book will quickly become unwieldy.