I've already got the script for Z-Moves and Ultra Burst in my game, but I don't know how to make the Z-button or the Ultra Burst-button appear on the battle menu in Elite Battle System. Could someone send me the script that allows me to do it (and the z button and ultra burst button images)
Hey there! Pokemon Essentials doesn't natively support Z moves, and doesn't intend on doing so in the future. I don't have the script myself to do this, but it's possible someone has made it before. You'll have to keep researching and maybe you can come across a custom script to add Z moves. If you want to attempt to script it yourself, I'd look at the script for the Mega Evolution button that appears in battle and use that as your base script. You'll need to make a custom Ultra Burst button too, or just find one on Google. I know that doesn't help much, but I'm thinking this is your best bet.
Developing Pokémon XD: Rebirth, a spiritual successor to Pokémon XD and Colosseum