Is there an NPC Editor for Black/White?

[Fox_]

In Black, you fight Drayden in the Opelucid Gym and Iris can teach the player's pokemon Draco Meteor. I want to Drayden be able to teach Draco Meteor too. But I can't find an NPC Editor or a similar hacking tool.

If there isn't a hacking tool for this, and it can only be changed by complex methods, I would like to make a request for someone that knows that stuff. It's not a big request in my opinion.

[Kaphotics]

Script editing, use SDSME.