Choose the Delete All ®ecurrences command (from the Edit menu, or press Ctrl+Del) to delete all undone instances of the highlighted recurring item (even if it is an exception instance).
If you wish to delete just the one highlighted instance of a recurring item, choose the Delete command (from the Edit menu) instead.
If there is a shared Note, it is deleted as well.
If you accidentally Delete All ®ecurrences of an item, you can the choose Undelete command (from the Edit menu) to restore them all, as well as any shared Note, however any exception instances you may have made will unfortunately revert to being non-exceptions upon undeletion.
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