I've created an O365 Group with an Executive Calendar. They want to add all their meetings, but do not want the meetings to be added to all the Group Members personal calendars. What is the best way to have this type of calendar in O365? It doesn't have to be an O365 Group, I used that so they could email and add the meetings to the calendar, but then it adds the meetings to all group members calendars. I've tried adding a Calendar App (Classic), which can be sync'd to Outlook, but not able to email that calendar, so the meetings would either need to be dragged to the Executive Calendar or reentered for each meeting. Is there a good solution?