Three of my friends and I would like to run a Copa Uno championship (the four of us plus the AI), but I don't know how to organize this championship in multiplayer. I've already created the championship with the races in the game, but as it is, I can't bring it to multiplayer. Can someone explain how to do this?
Unfortunately you cant. Hopefully it will be something possible in the future, there are many that would get a lot of use from that feature. It would be a good selling point for AMS2.
You can use a tool called Second Monitor for AMS2, it takes a bit to set it up correctly but once you got it you can easily create multiplayer championships with AI and it syncs with the game result to keep score automatically. Only thing to have in mind is that in the result screen players should not quite before the progress is saved, otherwise they don't appear in the race result of SM