Use VoiceOver gestures on Mac
If you have a trackpad and the Trackpad Commander is on, you can use VoiceOver gestures to navigate and interact with items on the screen.
To turn on the Trackpad Commander, hold down the VoiceOver modifier (see Use the VoiceOver modifier) and rotate two fingers clockwise anywhere on the trackpad. To turn it off, hold down the VoiceOver modifier and rotate two fingers counterclockwise.
VoiceOver includes standard gestures for navigating and interacting with items on the screen. You can’t change these gestures.
You can customize other gestures by assigning VoiceOver commands to them.
You can use a rotor to navigate text areas, windows, dialogs, and webpages, and adjust controls such as sliders, steppers, and splitters.
If you don’t know your location on the screen, tap three times. VoiceOver tells you what’s in the VoiceOver cursor.
When you drag a finger and you hear something you want to select, keep your finger on the trackpad and use a second finger to tap. This gesture is called a “split-tap.”
When you use VoiceOver gestures, you can’t use the mouse button on the trackpad, unless the mouse button is used with a modifier key, as in Control-click.