Click on the "Calendar" cube.
Select the month in which you want to create the appointment, by navigating with the left and right arrows on top.
Click on the day in which you want to create the appointment.
You will get an overview of the appointments for that day. Click on "Add appointment".
From the drop down list above the calendar, choose where you want to make the appointment. Fill in the appointment's start day and time. Fill in the appointment's closing day and time.
Choose the period during which the appointment needs to be repeated .
Choose the date of the last appointment.
Fill in a description and click on the "Ready" button.
The appointments will be added to the calendar and have the selected calendar's color.