Messages with "Disable auto-open" option

So, I'm still dreaming of an easy privacy funtion that notifies me that there are new messages, but does NOT show them. That can e.g. be useful if you are in a meeting or in other situations where everybody can have a peek on the watch.
So I looked into the "Messages" and it looks like an easy deal. In theory we just have to add

  // don't auto-open messages if noAutOpn is true
  if(noAutOpn) {
      loadMessages = false;
	  if (!quiet) Bangle.buzz(); // Buzz , if not in quiet mode to notify that some message arrived
  } 

In line 72 of lib.js and

    /*LANG*/'Disable auto-open, but buzz if not quiet': {
      value: !!settings().noAutOpn,
      onchange: v => updateSetting("noAutOpn", v)
    },

In the settings.js.

But I am hesitating to open a PR because if I upload the settings.js, the console shows

Messages settings error: Error: Error: Module buzz_menu not found

when oening the settings - even with the original settings.js. So I cannot test it.

Any ideas? Or if all that makes sense, @Gordon could you just add that to Messages as descibed above?