I teach three different class periods (sections) that have been lumped under the umbrella of one course. Because I don't anticipate giving each class the same exact materials as file attachments, I created groups for each class. However, the calendar on the group pages is blank even though I filled the calendar with events and assignments on the course calendar. Is there any way I can sync the group calendars with the course calendar? Or do I have to add everything multiple times each time I create an event/assignment?