How do I block or unblock a PorkTuner?

To block a PorkTuner, for example for maintenance, push the red button on the PorkTuner 1 time. To unblock the PorkTuner, push the red button 1 time again. The PorkTuner continues in the same mode as before blocking (Learning, Sorting or Delivery).

Check the Farm widget on the Dashboard for blocked PorkTuners.