Thanks, @sssupers !
I'm not seeing much detail on that site for this, and have some questions. And I'm not sure who/how to ask through there either. This looks like it is just part of what I want here.
If you happen to know:
Are these "info pop-ups" being added dynamically based on a glossary I define somewhere? What I mean is I define a pop-up for a word, let's say "Attack", then anywhere on my site where the word "attack" shows up, it automatically gets the same pop-up with the info defined in my glossary.
Would I be able to modify those to make them links as well as to