Yes, you can add unlimited additional public pages to Bloxby. The process is explained in detail in the following knowledge base article: https://support.bloxby.com/knowledge-base/how-to-add-additional-public-pages-to-bloxby/
FAQ: Can I buy additional blocks without upgrading to a higher package?
FAQ: Can I use a WHM/cPanel server to host Bloxby?
FAQ: What server / VPS and hosting company do you recommend we use to run Bloxby?
FAQ: How can I force Bloxby to use https/ssl?
FAQ: Why are my page and template thumbnails not being generated?
FAQ: Site and template thumbnails are not getting generated; why is that?