Use Logitech Options software to activate the back/forward buttons (on a Mac) and assign other
actions to the buttons.
NOTE:
On a Windows computer, this feature is available right out of the box.
Gestures
Installation of Logitech Options transforms the middle button into a gesture button you can use
to trigger gestures that simplify desktop and application management, media control, document
viewing, and personalization of common tasks.
Perform a gesture:
Hold down the middle button while moving the mouse left, right, up, or down.
The gure below shows gesture sets available for managing windows in Windows (7, 8, or later)
and Mac OS X (10.8 or later).
TIP:
Use Logitech Options to view available gesture sets and assign gestures to the middle button
or to other mouse controls.
Battery
Check battery level:
(http://buy.logitech.com/store/logib2c/DisplayShoppingCartPage/locale.en_us/)
