Your Appointments List contains all of the appointments that your user account has included in its filtering and has permission to see. To add, change or remove appointments, open your appointments list from the Main Menu, by tapping on Appointments.
From here, you can scroll through your past, present and future appointments. Appointments in this list can be opened and changed, new appointments can be added, and this list can also be fine tuned with filtering.
Start by tapping on the Add New (+) button on the top-right of the appointments list.
You will see the appointment detail screen.
To save the appointment, tap Done up the top-right, or go further and make your appointment into a recurring appointment.