Nowis337_InputConfig.findKeyDisplaySymbol = function(keysymbol){
let keycode = Object.keys(Input.keyMapper).find(value => Input.keyMapper[value] === keysymbol);
return Nowis337_InputConfig.findKeyDisplay(keycode);
};
You can try copy and pasting this into the plugin and see if it works - it should convert the keyname like "up" or "ok" into what you have set as the key.