Confusing setting name: "When ‘Auto-sync’ is checked"

K9 > Settings > Global Settings > Network > Background sync: When ‘Auto-sync’ is checked It's not obvious at all it meant ‘Auto-sync’ in Android’s settings. Personally I spent a lot of time and efforts just to find it out. Not everybody might be such stubborn. BTW, what exactly the Android's Setting is this? It is even not mentioned in Documentation. Different Android versions have different Settings(names, locations). Didn't find any suitable for Nougat.