Hello there. I have several questions regarding modding city size. The first question is pretty straightforward and I guess the answer to it will be "no" - is it possible to add a fourth city size? I do not need it to use different graphics (that, in my experience, will be impossible), but is there any way to restrict cities from going over, say, 20 population? Is it possible to disable freshwater adjacent cities from reaching size 2? I want fresh water to be a requirement for size 3 cities. I know it is impossible to add worker actions, but is it possible to make irrigation, roads and mines give non-specific bonuses, like irrigation giving shields? Is it possible to increase the bonus from modified terrain through technological advances? Is it possible to limit the movement on railroads? 0 is highly unrealistic. I know that we can do that with roads, but still... Also, if I have two civilization advances that double the effect of "wealth", would they quadruple the effect, when both are researched? I guess that pretty much sums up my questions. Thanks to those who will take their time to give their feedback.