Espruino with Glediator & LED matrix

Great! You can always do something like:

function onInit() {
  Serial1.setConsole();
  setTimeout(function() {  
    if (BTN.read()) USB.setConsole();
  }, 1000);
}

So if you've saved and want to debug again, you can just plug the board in with the button pressed down, and you'll get access to the console again.