Trying to figure out what determines if a skill is advanced by using a spell. I dug into the CK and found something to base my line of inquiry on by pulling up the Mage Stone perk. The settings for entry point are fairly straightforward, but under the fuctions is has lines like "EPModSkillUsage_IsAdvanceSkill" with the function set to "Illusion".

My main question is, how is a skill or power set so that it advances a skill on it's use. The main reason I'm trying to figure this out, is that I'm trying to make a mod that will make shouts raise appropriate skills.

Thanks in advance for any help!