Auto-translated
I don't understand how the presence of trigger events can hinder the creation of a scenario. At worst, you can simply not use them.
I'm just not using the right triggers; it's unclear which one is needed (I don't understand).
-----------------------------------------------------------------------------
Regarding monsters: Having more new monsters is good, but upgrades are unnecessary; monsters in Heroes of Might and Magic IV rarely take center stage in the game.
You're wrong about the upgrades; sometimes, monsters play a more significant role than the hero.