I've seen that some platforms support the modifier key Hyper (separate from Ctrl
, Alt
, Shift
, Super/Cmd/Windows
modifier keys).
While this is not a common modifier, It's available in X11, and I read something to to suggest macOS supports it too.
Which operating systems support a 5th (Hyper) modifier key?
Fn
key that many laptops have to handle keys with duplicate functions), I don't think it's something you'd want to use even if the OS supports it.