Simply click on any dates in the calendar or the "+" button on the bottom right of the screen to create the event.  You can now view the event fields that can be added. 

For a recurring event, choose from the following options (weekly, monthly, quarterly, yearly) and then enter the recurring times or the recurrence end date, which will be computed automatically.

When all of the information is accurate, click "Save." 

You should see that the event has been successfully added to your calendar.