Enter information into the fields provided. Critical only, is the "Category Name" field. The other fields are optional, but are used within Hyperseek as part of the dynamic content, including the META Tags, and possibly the description for use in the "CATEGORY" plugins' internal template. When you are done editing the category settings, press the "Save" button to add the category into the database. If this is a new category, then the category id will be created for you.
Note that if you enable the "Use Categories as Keywords" option in your preferences, then the META Keyword field here is required, and must only be a single keyword or single phrase.