How do you add a new "calendar group?" There is no "new calendar GROUP" under the File tab. There are only "New Event" or "New Calendar." please help
You can only group calendars under the heading "On My Mac" in the Calendars list.
If you are using iCloud, you may not see the "On My Mac" heading unless your temporarily disenable (uncheck) your iCloud account in Calendar>Preferences...>Accounts.
I am not using iCloud and unfortunately when I clicked the iCloud option (it was unchecked under Calendar>Preferences ), it wiped out my entire calendar.
I still can't add a "Calendar Group" option.
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