Hello, the Shop and Blog Pages are not fully functional, the HTML pages work as base so the buyers can possible integrate with another scripting languages such as PHP, Ruby on Rails, dotNet, etc… (That integration is responsibility of the buyer). Alternatively, you can just edit the HTML files on a local editor and upload the files to the server, so we decided to keep that code as clean as possible. There’s no CMS/Editor system ready to create new pages in a HTML template.
For the Shop Pages, the HTML was based on WooCommerce, so my suggestion is that you take a look on how to integrate the html pages with WooCommerce.
Let me know if you have any questions.
Thanks.