EBEU | Setting up Mega Evolution and equivalents

Requirements:
-Pokémon Emerald (USA) ROM with the EBEU inserted.
-roms.ini file

~~|Mega Evolutions|~~
1) Think about the following things: Which item are you gonna use as a Mega Stone, which pokémon you want to Mega Evolve and which pokémon you want to act as the Mega Evolution.

2) Once you sorted things out, let's start with the actual work.

Open PGE's Pokémon Editor and go to the pokémon that you want to be able to Mega Evolve.
Go to the Evolutions Tab and add an evolution in whichever one of the 5 slots you prefer.
Set the "Evolve to" field to the pokémon that you want yours to Mega Evolve into.
Set the "Item" field to the item that you want to use as a Mega Stone.
Set the "Condition" field to "Mega Evolution" which is all the way down on the list.
For testing's sake I'm gonna make it so Torchic mega evolves into Blaziken if it's holding a Potion.
Once you're done, hit the "Save Pokemon" button.

Now let's go to the pokémon that you've set yours to Mega Evolve into.
Go to the Evolutions Tab and add an evolution in whichever one of the 5 slots you prefer.
Set the "Evolve to" field to the original pokémon. In my case, Torchic.
Set the "Condition" field to "Revert Megas" which is all the way down on the list.
Once you're done, hit the "Save Pokemon" button.

3) Now close the Pokémon Editor and let's go to the Item Editor.
I already mentioned that I'm using the Potion as the Mega Stone for Torchic, so I'll go to its entry inside the editor.
You only need to do 2 things: Set the "Hold Effect" field to "139" and Set the "Extra Parameter" field to the ID of your pokémon inside PGE's Pokémon Editor, in Hex.
In this case, Blaziken's ID inside PGE's Pokémon Editor is "282", so I'll have to put "0000011A" in that field.
Once you're done, hit the "Save" button.

4) And now, just go into the game and test.
Get your pokémon, the Mega Stone and your Keystone to enable Mega Evolutions In-Game, then equip your Mega Stone to your Pokémon, get into a battle, choose "Fight", Press the GBA's START Button, choose an attack and enjoy.

~~|Primal Reversion|~~
Same thing as before, the only changes are:
2) Set the Condition Field inside Groudon/Kyogre's Evolutions Tab to "Primal Reversion".

3) Set the "Hold Effect" field of your Red/Blue Orb to "141".
Set the "Parameter" field right beneath it to 1 for Alpha Reversion/Blue Orb or 2 for Omega Reversion/Red Orb.

~~|Wish Mega Evolution|~~
1) Open PGE's Pokémon Editor, go to Rayquaza's entry, and add an evolution inside the Evolutions Tab with the next information:
Condition: Wish Mega Evolution.
Attack: Dragon Ascent
Evolve To: Whatever slot you have Mega Rayquaza inserted in.

2) Go to Mega Rayquaza's entry inside the Pokémon Editor, and add an evolution inside the Evolutions Tab with the next information:
Condition: Revert Megas
Evolve To: Rayquaza

Credits:
-DizzyEgg and KDS || The guys who created the EBEU.
-Gamer2020 | The guy who created PGE.