"Generate getter" - better options to avoid undesired const ref return type

I have a large project with thousands of classes. Almost all classes which are passed via getters/setters are copyable by value (small or implicitly shared).

Whenever I use "Generate getter and setter" and similar refactoring methods, I have to manually correct the returned const ref. On the other hand, managing the hundreds of custom value classes in Creator's settings just isn't feasible.

Why not offer a setting to "return by value" by default?

Or some intelligence that any copyable object will be returned by value, and only non-copyable objects will be returned by reference?