Questions about the gameplay of Heroes 6.

How did you add the question marks in the hero window?

Don't pay attention to them; this screenshot is from the beta. There is nothing like that in the release version; only heroes are present.

Just having two heroes for each faction seems a bit limited...

Having two heroes from each Faction to choose from is only offered in offline mode. Switch to online mode and create your own character, choosing their gender, name, Faction, portrait, alignment, reputation, and specialty. If you mean choosing a hero for a computer opponent, then everything is fixed in both modes: you can only give the opponent the available commanders.

By the way, Adagio, how did you set up 6 teams? I always have no more than two, and I don't understand how to change that.

I think it's related to the game mode. You probably have "Two Teams" selected. Choose "Every Man for Himself" so that everyone plays against everyone (then the number of teams will be equal to the number of participants). In the "Custom" mode, you can distribute players into teams yourself, and you also set the number of players in each team. "Map Settings" – I'm not entirely sure about this, but it probably refers to scenarios and maps with an extended storyline.