How can I add a town, village or port?

[gugus]

There are a lot of tutorial here, but any who answer to my question.

May somebody help me please? I'm ready to add a modding team if this is necessary

Thanks

[husserlTW]

There are a lot of tutorial here, but any who answer to my question.

May somebody help me please? I'm ready to add a modding team if this is necessary

Thanks

Many tutorials say that there is no way to add new things in game.