
Originally Posted by
Jams79
I think the file you need to mod is campaign_map_settlements in the db folder. If you open it in a hex editor and search for the city you will find two instances right next to each other. after the second is a number (04 in Copenhagen, 05 in London) change that to 05 and you should have 5 slots. Whether you need to specify what types of building can be built in some other file I don't know.
edit: Unfortunately you have to set the type of building (government, culture, navy admin etc...) in the stratpos.esf. I could probably alter one building in to another but not stick a new one in.