Logitech MK700 - Manual (Page 9)

English 9
User’s Guide
Keyboard features: F-key usage
User-friendly enhanced F-keys let you launch applications easily. To use
the enhanced functions (yellow icons), first press and hold the
'/ key;
second, press the F-key you want to use.
1st - Press and
hold the FN key 2nd - Press an F-key
Tip In the software settings, you can invert the FN mode if you prefer to access directly
the enhanced functions without having to press the FN key.