The calendar selector appears to assistive technology as a bulleted list of available calendars. Each calendar corresponds to an individual course you are enrolled in. If one of your courses is missing from the calendar selector, you can add calendars to your list by selecting the Add Calendar link. Select a course link from the bulleted list to display the calendar events in the main calendar display.
If you set the calendar to display all calendars, events in the main calendar display do not indicate which course the events belong to. To distinguish which course an event is part of, select the event name to display event details.