How to play the campaigns in the standard version of Heroes of Might and Magic V, specifically the Tribes of the East expansion.

In short, the developers initially started developing the game in a rather clumsy way. And now the question is, how to change their initial bonuses? I'm using the mod from your link, and I also don't have a map editor; in the version I downloaded, it's not in the bin folder. I searched for and tried several map editors, but none of them worked.