This tool is so famous for changing the Pokemon maps with so many different additions.
Advance Map
Platform(s): GBA Hack Tools
Type: Map Editing
Compatible with: Pokemon Ruby, Sapphire, Emerald, FireRed, LeafGreen
Supported OS: Windows
Download Pokemon GB GBC GBA NDS Hack Tools
Advance Text will help you get out of that case because it is the current most-used text editing program for any GBA Pokemon game.