User Guide
For more help, see the MX Master 2S FAQ page
Thumb wheel
Scroll side to side effortlessly with a stroke of your thumb.
To scroll horizontally:
Spin the thumb wheel up (to scroll right) or down (to scroll left)
Install Logitech Options software to extend thumb wheel capabilities:
Invert scrolling direction
Reproduce touch-based gestures
Adjust scrolling speed and resolution
Navigate tabbed content
Switch apps
Swipe between full-screen apps (Mac only)
Switch between full-screen apps (Windows 8 only)
Zoom in and out
Adjust volume
Control screen brightness
Display notifications (Mac only)
Gesture button