Automatic transient properties recognition

[Vitaliy]

Can the engine be a little more experienced in the properties estimation.

E.g. when the property simply doesn't based on any class field?

I mean it is a little boring to specify:

cfg.HasProperty(c => c.PeriodNameForVoucherRef).AsTransient();

for: 

public string PeriodNameForVoucherRef
            => PeriodName.StartsWith("QD") ? PeriodName.Substring(3) : PeriodName;

every time.