All procedures explain

Hello everyone well, I'm looking for a detailed explanation of each of the procedures in the current version of MCreator. Currently, in my mod, I need to make the tier 0 armor disappear from the player's inventory when equipping tier 1 armor by placing the corresponding item in the custom GUI. There will be three tier 1 evolutions: melee, ranged, and alchemist, continuing up to tier 5. I think I will need to read a lot about this, so if anyone could tell me where to find the documentation, I would be very grateful.