The default calendar always displays the course from which you accessed the Calendar tool. The course name appears as a link on the page. If you have permission to create course events, those events appear on the default calendar.
You can change your default calendar by selecting the link labeled with the default calendar's name. When the calendar selector opens, choose a course calendar to view. When you change your default calendar, you also switch your current course in iLearn Learning Environment to correspond to the course calendar you select.