Relocating cities

[lsteve]

I want to relocate/create some cities in the near future. Its the first time I want to do something like that.
For relocating cities is it just changing the coordinates or do you have to draw the city on a map? I'll need to edit the regions by doing this, and edit the colors if I want to change factions.
But for the rest if you fill everything correct in the text, the city will exist on the map?

When creating new cities, is there a maximum ( in RTW vannilla)? Or can you create more regions without problems?
Is it necessary to give it to a faction, or can it be given to rebels? A culture (roman, barbarian, greek ) is needed probably.

[vikrant]

i think limit is 195 reigons

city can be given to rebel

and the tutorial in modding resources section is very descriptive.
it deals with both the aspects ie text editing and map editing.