How to publish chosen Page from a folder?

I purchased this ecommerce template which has different Pages with different layouts. Those pages are nested in Folders. Can not find an easy way to publish one or another Page. I am stuck with what was set as default Page from each folder. Where do I change that? I see that there is a CMS collection created for blog posts. Tried to change URLs and it seems that I messed up something as non of the Pages show now and says PAGE NOT FOUND.

How do I pick and publish any page from a folder?

Here is my public share link: Webflow - Nordlab Store