If I accept an invite and it goes to my calendar, how do I later change my status and notify the inviter? I don't have "accept/tentative/decline" buttons available in the calendar items. <br><br>For example I want to decline a specific invite in a recurring event, but only "delete" is possible and this does not seem to notify the organizer. <br><br>Or I might want to change my status from "accept" to "tentative" and I don't see how to do this either.