RE: MAA - hax - easy win
The post you quoted tells you how to do it in PvP. If you mean practice fights, probably not. They're not intended to drop items so that you can't endlessly farm them, so it would probably crash if you tried to add it.
There's really no reason to anyway. If you modify the droprates in 1029.xml you can get 20 uiso per fight in the spec op battles themselves, so with a little effort you can get as many as you use and never need more.