From Create Your Own Story

You have reached R's mailbox. Leave your messages here (in new sections) and I will (hopefully) get back to you as soon as I can (usually in a week, max).

And no, I am not interested in your girl scout cookies, OR your 'superb' insurance offer, OR your oh-so-great money lending 'services'. No spam please!!! :]

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Creating a category for your characters is exactly like creating a category for the pages in your story. Since you've got one down, you shouldn't have any problem with the other. Rampage has a category for the characters. You might want to look that story over and see how I've done it there. Just press the 'edit' tab on any page to check the coding. --Platypus 11:50, 16 July 2018 (UTC)

Sub-category

In case Platypus didn't explain it well enough, to create a sub-category, all you have to do is slap a category link on a category. Type in the category link on your character index, and it is now a sub-category. The tutorial doesn't say this, so as of right now, it's a hidden feature.

If you still don't understand, go to my story Battleground, which is 7 pages long and has 7 pages in it's sub-category.