feature request / how to implement numpad keyboard

[alexisdal]

i used mlkeyboard to prototype a touchscreen keyboard. It works fine.

However, my user simply dont use a "standard" keyboard. they merely use a USB numpad keyboard (see image bellow). they basically use 0-9 ENTER and DELETE. I would like to present them a mlkeyboard that would like this numpad keyboard

however:

looking at the advanced documentation, it seems you can only have a different language, not a different layout.

loooking at the code such as display key or when "special keys (ex: enter, delete, tab)

looking at the unminized CSS, it seems keys layout and size are implemented in the CSS.

Except forking entirely the repo and make my own stuff, what would be your advice to implement a numpad keyboard that ultimately could be merged back into the main code ?