Logitech Craft Keyboard Getting Started page 6

3. Select the feature to assign to the key. In the image above, Brightness Down will be
assigned to the F1 key.
The F-key functions are as shown:
Key Description
Screen brightness down
Screen brightness up
Task View
Action Center
Show / Hide desktop
Key backlighting level down
Key backlighting level up
Media control : Previous
Media control : Play