EHM The Blue Line

This is a very basic and stupid question, but

Would it be possible to make certain leagues playable that weren't playable in the original game. In essence, what I want to do is play and update the CIS rosters as well.

I should mention that I am a complete beginner at the whole modding thing and never really even knew it existed for EHM until a few weeks ago...so perhaps save the explanations on how for now, and just tell me if it's possible...

Sorry if this isn't of proper "calibre" for the forum...I am also aware that there has to be a question just like this further down in the forum discussions as well...

Only way to make a non playable league playable is to switch them. So you find a playable league with same # of teams and move your non playable teams there, and the playables to the non playable.

Leagues must remain with the same # of teams, and you have to watch out for trademarked teams and stuff. Weird things happen if you do not.

Before you do anything, make sure you back up your original leagues and rosters etc.