The original recipe makes a sourdough loaf of about 1.35 kg, with an autolyse and a tangzhong. The slider rescales it to any loaf between 500 g and 2 kg: the quantities, the baking time and the cooling time follow the size. In the timetable you can set when you feed the starter and when the bread should be ready to eat, and the times of all the steps are worked out from that.