Event Hacking ID's - RAM/Memory Editing

[Retro57570]

I have found success in being able to alter the map that loads on a screen and even the areas by using memory editing. However, I have found that it is not pulling in the NPCs into a map or reverting maps to specific points. Is there a memory address that controls the event ID doors/triggers on the world map and/or doors in towns/dungeons? If so, does anyone have ID's for at least a specific location so I can start messing with it. I am looking to master how the game uses these variables live. Thanks.