Thanks for your help!
I went under there and find the section you are talking about. I am currently using the “Custom Structure”. If I were to change this, it would affect my blog posts also. Is there a way for blog posts to chost up at https://www.mysite.com/blog/ but then my WP Knwoedgebase to show up at https://www.mysite.com/knowledgebase/ ? It is unclear how to make that change in the Permalink setting how to do this.