(M&M 3e) New Combat Advantage

[BardMorgan]

I'm trying to add a new skill (Astral Combat) specifically for combat on the astral plane. That brings up some questions:

1. How do I set up powers to show up in the list that the "Set Attack" button brings up?
2. How do update the script to bring up that list?
3. Do I need to update the scripts for Close Combat and Ranged Combat in some way?

Thanks!

Morgan