Adding and Removing Leagues During Game

I know this isn't editing as such however my point moves on and it is, bare with me :s lol. I have been looking at adding leagues etc during game and I was wodnering when you do this is this making them playable, therefore depending on how many leagues you add, make it slower? Also is it possible to just add a nations leagues so that you have a wider database, like say a view-only like initial start-up or does this not make a difference? Also if I was to make a few new leagues, such as leagues from the Gulf, would they be avilable to add in during a already started game/save and apply to the already disscuessed?
Thanks for any help and in sight!
Cheers!!

yeah when you add different leagues they are playable. but they take about 6 months to actually come into affect. i usually add mosat leagues anyway dont see the point in not doing it

#37100 toonman8589 : yeah when you add different leagues they are playable. but they take about 6 months to actually come into affect. i usually add mosat leagues anyway dont see the point in not doing it

what do u mean by most leagues? around the world? even the useless countries?