To select (or de-select) which calendars you would like to view simultaneously, click the drop-down arrow at the upper-right-hand side of the calendar, next to the tabs “Week / Month / Agenda.” This will bring up a menu of checkboxes from which you may select your preferred view.
If you use Google Calendar, you may also want to click the “+ Google Calendar” icon to add dates from your selected sites to your own calendar.
