Open one instance → Cancel → Whole series. All future instances get status "Cancelled"; already-passed instances stay in history.
Attendees receive one combined cancellation email per person (not 10 separate mails if there were 10 instances).
Open one instance → Cancel → Whole series. All future instances get status "Cancelled"; already-passed instances stay in history.
Attendees receive one combined cancellation email per person (not 10 separate mails if there were 10 instances).