This window allows the setting of various city parameters. These parameters will be saved both with the map and the scenario. City Name - To change a name of the city, select the old city name, then type in the new name. Production Efficiency - The production efficiency may be set anywhere from 0% (i.e. no production) to 250%. One may use the scroll bar or type in the desired value in the text box. Note that production efficiency is used only in the Advanced Game. Production Specialization - The unit type in which the city will specialize is set with this popup menu. Production specialization is used only in the Advanced Game.