Questions about the Heroes 4 map editor.

I don't know, in my opinion, it doesn't matter. In key moments or quests, I fix the number of enemy units, i.e., I put them under the control of the red player, and the map difficulty is normal. But it still needs to be tested; after the final test, I'll set the final difficulty. But it's still a long way to go: the map still needs to be finished. In short: prepare the map, and leave the tests for later. For now, just roughly estimate, you can also fix the number of units.