Issue with Fn button on external keyboards

[stas-me]

With external keyboards like "Logitech MX Keys" and many others, the Fn keystroke is not sent to the machine. It is processed by the keyboard itself.
It would be very helpful if we could pick a key that would trigger the language change. We can't use the software otherwise.

Even setting the keycode through some configuration file would do the trick.

[sgfat]

Did you try to change settings for your keyboard in Keyboard shortcuts - Modifier keys? But don't forget to select your keyboard on the top.

[stas-me]

Well, yes, it is possible to assign the "Globe" action to one of the other keys, but I would be left without the possibility to use that other key, and all of them are too important to be disabled.