Useful or not, from you.
Karabiner-Elements Support for Microsoft Natural Keyboard 4000 Hotkeys. #703

https://github.com/tekezo/Karabiner/issues/703

That's a useful answer
Without any help

+1 for the MS Natural 4000. Please, that would be sooo great!

The USB override ∧ MS-Natural-Keyboard-HID-Handler do not work.