Information about maps

[Tenkarider]

There are other settings for the map, like the background in battles, the song played, enemy formations used, etc. I don't know where this setup is stored

Wouldn't be a good way to know their position, or the position of most things, by picking a fresh rom, changing a single thing that you want to know their position(like changing the battle pack in a map with FF6LE) and then comparing this rom with another fresh rom? that should reveal their address in the rom.