btw, to stop the script run this in console:

running = false;
if (lastX !== null) {
  let currentX = cursor.x;
  let currentY = cursor.y;
  cursor.x = lastX;
  cursor.y = lastY;
  for (let i = 0; i < lastLen; i++) {
    writeChar(" ", 1);
  }
  cursor.x = currentX;
  cursor.y = currentY;
}