Sorry for the late reply. I realized that by downloading the stuff for making it months ago, and only starting today, I was behind a version or two. That is why it wasn't working. Thanks for your prompt response.

So I just got started with the custom builder, and want to check my work as I am building. When I went play the custom story it did not show up in the drop down menu. Is there something I am doing wrong? What I am doing is exporting the story file from unity, putting it in the custom stories folder ...