You can program the hot keys on your keyboard using the Logitech SetPoint mouse and keyboard software.
NOTE: If you don't already have SetPoint installed, you can download it. See Knowledge Base article 360023356033 for instructions.
To program a hot key:
Launch the Logitech SetPoint mouse and keyboard software.
Start > Programs > Logitech > Mouse and Keyboard > Mouse and Keyboard Settings
Click the My Keyboard tab at the top of the SetPoint Settings window.
Select your keyboard from the product drop-down menu at the top left.
Click the lightning bolt icon on the left toolbar to display the Hot Key Settings screen.
Choose the hot key you want to customize in the Select Hot Key field.
NOTE: If a key doesn't display here, it isn't programmable.
Choose the task you want to assign to the selected hot key from the Select Task list.
NOTE: You can click the "?" icon for descriptions of the tasks.
Click Apply to save your settings and then OK to exit SetPoint.