Hello,
Sorry, but let’s make everything clear. It’s not that I don’t want to give you refund if our theme have real issues with its settings or default WP functionality but you are asking about things that are not included in default WP options, right? Could you provide me screenshot of the default option that our theme does not support? We need to know it for future to fix it.
Our theme supports category archives and you may create the menu with item “blog” with submenus where displayed only the necessary categories. But WP blog page don’t have any filters by default and they could be implements only by third-party plugin.
Also, if this is your second license then you should know about options that are available in theme settings. Alternative way to show the posts with categories filter without 1 or more categories is to create simple page, add Post Grid or Post Masonry grid element and enable filter http://prntscr.com/gwuck1
Regards