Other than the progression into the associated Hero classes for either Fighter, Scout or the three Mage variants, are there any official rules for making a character that might have more than one class - for instance, for making a Fighter than then wanted to add some Magery to his repertoire? I didn't see anything like that so far in my reading of the rules, but I'll cop to not knowing all of them yet.
If there aren't any official rules, has anyone come up with any house rules along those lines? Conversely, has anyone found that doing something along these lines be game breaking?