Protein target calculated by body mass.
I have Apple Health integration turned on, and I weigh myself daily, so my current weight flows into Cronometer in the morning.
What I'd like is to be able to set my protein target as a multiple of my weight in kilograms--say, setting it to "1.6 g/kg/day" or "2 g/kg/day"--and have it calculate that day's protein target. Then for fat and carbs, set a percentage to apportion the rest of the calories between those two remaining macronutrients.
I sort of do this in my head now; I've set my percentages so that protein works out about 1.8 g/kg/day. But it'd be helpful if the software could do it instead.