How do I make scripted wild encounters use Hidden Abilities in Gen 5?

[MackanK]

I have been trying to create scripted encounters with wild Pokemon in BW2, those that use an overworld Pokemon sprite that you can interact with.

I have been sort of successful in trying to copy existing scripts, but I still don't know how to make them exclusively use their Hidden Abilities.

I have looked through the various scripting threads on the forums here, but there has been no mention of abilities. I have also tried looking at the scripts for various instances already in the game, both wild ones and those received as gifts. I haven't found how to do this yet, so I was hoping someone on here would know how this can be done. Thanks in advance for any help!