...
If you just want the beans fast quickly you can stop cool down as early as you like. Press ▶ then -. But if you are intending to roast back-to-back batches you must have the full BBP: let cool down run until the roaster stops it automatically. (BTW, don’t turn the roaster off between batches. As part of the BBP it measures ambient temperature and this measurement affects the next batch. When you turn the roaster off this disrupts the measurement of ambient temperature for the next batch.)