I don't know how to play online. When I select opponents and start the game, the computer requires me to make moves for the enemies. What should I do?

Added 6 minutes later
Ah, I think I figured it out, sorry.

Added 4 hours 26 minutes later
I played the new version with a hero from Haven against Warlock, and I finished it in 11 weeks. I was impressed by the power of the defenses; I dealt with them exclusively using dark magic. However, towards the end of the game, I was surprised to find that the opponent ignored them, using "Astral Gate." This last circumstance negates all the author's efforts to improve the map. It's a pity, because the map is really "heroic."