No doorbell button press trigger available in SmartThings app

I am using the SmartThings app for Android and linked my Ring 2 Video Doorbell. However, when creating a SmartThings automation triggered off the Ring 2, only 2 trigger types are available: Motion Detected, and Battery. I do not see an option to create an automation triggered by someone pressing the doorbell button. Can anyone explain why this basic functionality seems to be missing? I have also asked on smartthings community . Thanks