1. Navigate to appointible.com
Log in to your account and click the "Clients" button, which is located in the left sidebar.
2. Clients list
Clients with a star next to their name are selected as VIPs.
Click on a client you want to select as a VIP.
3. Click on a star in the client details panel to make them a VIP
You can decide what defines if the client is a VIP.