Help with triggers in Scenario Editor

Good day to all:

Im currently making a campaing about Ivan the IV in Aoe2 in the scenario editor and I would need some help with the scenario editor and triggers, for example managing to create troops after tributing a certain player. Is there somewhere I can learn about this, like discord servers or subforums?

Thanks in advance to all!

UGC discord

Ozzy Empires got a lot of good tutorials about the Scenario Editor

Also Alkhalim got a few good tutorials that can help you.

If you combine the knowledge of the two video’s you can probably make it so that a unit or technology is unlocked after a tribute.