Minor Faction in custom battle?

[Shiftehh]

Erm.. sorry guys, but the search function on this forum seems to be broken so I can't do a proper search for this as I know it has been asked many times before..

So how can I enable, say, Portugal to be played in a custom battle?
Thanks!

[Shiftehh]

Nevermind, I found the tutorial.. Took me a while though.
For future notice, here's the link:

http://www.twcenter.net/forums/showthread.php?t=245214