- In Calendar, in the Navigation Pane, select the check box of another calendar that you want to view.
The calendar that you selected opens next to calendar that is already displayed.
- Repeat step 1 for each calendar that you want to view.
- On the Calendar tab, click the left pointing arrow.
The calendars are now in overlay mode. To add another calendar to the overlay, repeat this step.
- At least one calendar must always be displayed.
- To remove a calendar from the overlay stack, click the right pointing arrow.