And another question: according to the scenario, the hero encounters another hero (neutral), and the latter offers to join him. If the main hero doesn't agree, a battle begins, but if he agrees...: the red player is transferred to the player - and then, for some reason, a battle still starts. Moreover, you control both your hero and the newly joined one.
Posts from Questions about the Heroes 4 map editor.
Added after 12 hours and 44 minutes
Please tell me how to make it so that only one specific player can be selected at the beginning of the game. Currently, at the start of the game, it's possible to check all the players (change from computer to human), but I don't need that.
Question: Is there any kind of "anti-bomb" that would cause an object to appear when a quest is completed, or a corresponding trigger?
Please tell me how to make it so that only one specific player can be selected at the beginning of the game. It turned out that at the beginning of the game, it's possible to check all the players (change from computer to human), but I don't need that.
I covered the desired object with mountains.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!

Please tell me, if anyone knows, what the problem might be.
Here's the situation: oracles should show the location on the map where the hero activates a local event. I placed a cross there, but in the game, during gameplay, the oracles showed a completely different location. What could be the reason for this?
Thank you in advance for your help.
P.S.: Someone here mentioned that by digging around in the editor settings, you can find additional unfinished, useless objects. Could you please provide more details on where to find them? And in general, is there a mod available online that adds more objects to the editor? I have "Whirlwinds" installed, but not "Equilibrist."
The oracles should indicate on the map the location where the hero will trigger a local event. I placed a cross there, but in the game, during the playthrough, the oracles showed a completely different location. What could be the reason?
Check if the oracle and the cross on the map have the same color.
PS: Someone here mentioned that if you dig around in the editor settings, you can find additional unfinished, useless objects. Could you please provide more details on where to find them?
Tools - Settings - Groups tab - create a new one, and a list of all objects will appear; then, just search.