I'm not seeing anyway to add new categories beyond the existing "general" category that exists by default in my UNA.io installation. The control panel section under discussions for categories is where I would expect to see a button to add, but none is there. See attached screenshot.
I understand that this site is powered by UNA, but I'd like to know whether there are any other sites, not under your control, that have selected UNA and are using it today. Please provide links to other sites if they exist.