Hello @Episode.Cameronwrite! If you look over the Guidelines, it will tell you how to do it. But if you need more help, this is how it’s done.
First we describe the feature we want. In this case, a writer’s portal feature, so you can just call it a feature. We capitalize all the letters. FEATURE. You’ve got the colon : in the right place, so yay! 
Just make sure that all the words following the colon, the ones describing what feature you want, all have their first letter capitalized.
In other words, do this. FEATURE: Change In Story Style.
Thanks for asking and have a good day 