Calendar Integration as a Datasource
You can create a new calendar by clicking the add button in the bottom right corner.
Create your events.
Select the calendar which you wish to share.
Copy the Public ICal URL and use it as your datasource.
You can find more information about how to use datasources here.
Office 365 Calendar
You can add a new calendar with the Add calendar button in the top-right corner.
You can share your calendar by right-clicking on it and selecting Sharing permissions.
Type in your non-Office365 email address and hit share.
You will receive a URL in an e-mail, you can right-click on “This URL” and select copy address.
This will provide you the Ical formatted information about your calendar.
You can preview what’s inside this file here.