Allow countries/cities to be disabled until a certain turn in scenario

I would like to see scenarios where certain countries/cities are disabled until certain turns, it would make for more interesting gameplay.

You can simulate that by making specific units for that country that are only made there and make them unbuildable from the turn you want them to be unbulidable and make event units such as inflation that cost 5k (that means 500- to ecc a turn) to simulate ecc falling but yes making it disabled will make things easier : D

You can add in the cities but if you give a specific player units in a neutral city it'll make the player control that city, so if you add a city in and wait a few turns then give them units in that city, they'll claim control of it.