[Emperor's Child]

I'm in the stump the chump mode on finding an AI-tags description. My searches have come up with lots of references to "use AI TAGS", but I can't find something that actually describes how to do it. I didn't see it in the design creation cheat sheet, but my computer at the moment is toast and I had to read the word file in text mode. Nevertheless, doesn't appear to be there.

Where is the use of AI tags described?