You can create an appointment in three different ways. Please select the Doctor for whom you want the appointment to be created.

First Method - 

 Clicking on the blue plus button just above the Doctor's name. 

Second Method -

 Clicking on the calendar of the selected Doctor for whom you want to create an appointment.

Third Method -

Nr3.gif You can create a followup appointment for a patient when you are viewing your notes about that patient.