I made a True Start Location map, and all civilizations spawn at their desired locations. However, civilizations that weren't supposed to be playable, like Canada and America, can still be selected when starting a game on this map. The map size, resources, water level etc. can also be adjusted for some reason, even though they have no impact on the map because it's premade. How can I add fixed parameters to my map like TSL Europe has? When selecting that map, you cannot choose any non-European civilizations and cannot adjust the map size, resources, water level etc. This is what I would like as well.