How do I add a hero to the map editor?

I just tested how my hero works with a clean copy of the game. My friend downloaded the game, I sent him the .pak file, and he put it in the data folder. In the map editor, the hero is present, and you can select him as a hero in a newly generated map.

The index.bin file stores the paths to all the necessary files, including AdvMapObjectLink, Texture, Model, and so on. I looked at it, thought about it, and it seems that this file cannot be changed manually - although I will try in the future - because of the various characters whose meaning I do not understand.

Now, index.bin is in the .pak file of the new hero, so there is no need to worry.

In any case, through trial and error and reflection, I came to the conclusion that I was able to create the mod correctly, even if it was through strange and winding paths. Next time, I will use the editor's capabilities to simplify my own life.