Recently I presented at the Sitecore Virtual Summit and on the same day at the Sitecore London User Group. The presentation focused on the new search features that are within Fortis version 3.5. You can watch the recorded video on the virtual summit website and also download the source code I used for the demo site on github. You should be able to sync the TDS projects, build and deploy the site and be up and running. If you don’t have or use TDS then have a look at the Transitus library for the code generation.
Demo Site GitHub – https://github.com/Fortis-Collection/Demo