Nav bar won’t auto-add pages!

Hi, I’m using the Blix template. (I know, I know…what did I get myself into.) I know that when I create a page, it should automatically be added to my navigation toolbar (in my header). However, this isn’t happening — all I have is the “home” default. How do I get my pages to show up there?

Also, I’m new both to CSS and to WordPress forums, so I am sorry if this is posted in the wrong place or is an insult to everyone’s intelligence.