MMH5.5 - Heroes of Might and Magic 5.5

Some custom maps can alter the behavior of the whole game. They are like mods. So test them one at a time and keep the rest outside the map folder.

Thank you, I'll keep that in mind. And here's another question for the expert: is it possible to modify the heroes in this already excellent mod? Or will this negatively affect the game? Specifically, I'm concerned that for the Necropolis faction, many heroes lack the Necromancy skill at the start. For example, I would replace Basic Combat with Basic Necromancy for the hero Xerxon at the start. I know roughly how to do this, but I have no idea how to configure heroes in this expansion, as the editor doesn't really recognize the new features.