Board Thread:Support Requests - Getting Technical/@comment-34110335-20180103234222

So the templates help page says that advanced users can edit MediaWiki:Editor-template-list in order to change the templates seen in the bottom right-hand corner of the editor. However, I'm still not quite sure what this means. I have a template called Template:Character but the editor doesn't look any different after I publish the page with only the text:

Template:Character

So I was wondering, how do I use MediaWiki:Editor-template-list? 