I use Pkhex MiscEdit to unlock the events and at the same time get the items... Darkrai no problem.
Shaymin the item is well in my bag but the cinematic did not unlock, the Professor Oak is in front of the stone wall but impossible to speak to him... I walk until the flowered paradise and...
I just noticed another problem. I use Pkhex to get the legendaries items (Darkrai/Shaymin/Arceus) but the azure flute is not found in my bag, even with "Misc Edit" on PkHex (for Shining Pearl)
i approve it
making a backup of the game is easy it will be called "SVDT" but a software to edit the seals, weapons and their levels is what I am interested in