On Mon, 2020-04-13 at 15:37 +0200, Dr Rainer Woitok wrote: > On Sunday, 2020-04-12 20:53:47 +0100, you wrote: > > No, binding things to modifier key does not work. > > Thank you for this ultimate answer. At least now I know I can give > up trying.
I guess you could hack fvwm or create your own fvwm-plugin that opens /dev/input/$YOUR_KEYBOARD directly (see e.g. evtest), but that's definitely not the X-way and nothing for mainline.