On your Mac, use Pointer Control settings to make your mouse and trackpad easier to use, turn on Mouse Keys, perform certain mouse actions using keyboard shortcuts, assistive switches, or facial expressions, or to move the pointer using head pointer. The options available depend on the Mac you’re using.
Change Pointer Control settings
Select the Apple menu
Choose System Preferences
Click Accessibility
Click Pointer Control on the right
Toggle any of the following
Enable Mouse Keys - allows the pointer to be controlled using the keyboard or number pad
Enable alternate pointer actions - allows a switch or facial expression to be used in place of mouse buttons or pointer actions like left-click and right-click
Enable head pointer - allows the pointer to be controlled using the movement of your head captured by the camera
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