Does Rankerx not have automatic spin of contents?

I put one article in the "content menu" and ran the campaign, but the article didn't spin.
Do I have to put a lot of articles directly into the "content menu"?
And what is the difference between CONTENT and BLURBS? I'm so confused about this.

To summarize the question, I wonder if there is no automatic spin function when you run the campaign with one or two articles.