In order to create a new appointment within a calendar, select the area in the upper main menu.
Next select the calendar in the navigation tree on the left, for which you want to create a new appointment. You are directed to the following window:

The current day is marked with a blue background.
By a click on the date you select the point in time for which you want to create an appointment. You are directed to the following window:

Enter a suitable title, a short summary as well as a description of the appointment. Furthermore you can determine a time frame in which the appointment takes place. You can enter a specific location and an organizer of the event. Furthermore you can set a reminder for yourself as well as for all members and organizers. The reminder is carried out by e-Mail. At the same time a message is displayed in your news category ‘personal messages’.