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Build more things.

Less cheaty version than "Build everyting!". Allows you to build more types of buildings in the secondary slots of the main city in the province. Or convert one into another. Now also allows you to convert main buildings into their non-unique variants, major ports into their variants, minor ports into their vaiants + saltworks. Does not include most of the resource villages, more powerful buildings, uniques and cultural variants.

Since it's supposed to be save-friendly, you can load one with mod, commision a necessary change, save again, exit, uncheck a mod, reload that save, and still have that building.

Does affect AI.

If used in conjunction with exellent mod "Building Choices (Stafford has a castle mod)" by StrangeAK47 (here: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1382382308) you can change not only cities, but also SOME minor settlements (again, if the slot is not occupied by port) - but, infortunately some other conversion choises in minor settlements will be lost.