My Robin has a main fuel tank holding 110 litres and an auxiliary tank holding 50 litres. In the Weight & Balance section of SkyDemon I seem to have to set the main tank fuel quantity in litres and the auxiliary in kilograms. I’d prefer to enter both in litres. More significantly, in the Flight Details section, the Fuel slider will only go up to “110 ltr” even though I show the auxiliary tank as carrying 36 kg (ie 50 litres) ie full fuel. How do I get the slider to go up to 160 litres?