Auto-calculate calories when entering macronutrients

I flip back and forth between a couple different tracking apps. The number one thing that keeps Cronometer from being my favorite and only is that when I add custom foods, or want to create a custom copy of an already established food, I need to do the calorie math with the macros instead of it auto populating. This is very frustrating considering all of the other great details and date the app offers. This would be a KILLER addition, and definitely making it one of the best out there