User blog:DNYI/How do you create a category?

Does anyone know how to create a new category on this wiki?  For instance Elite Dangerous: Horizons will intruduce skimmers as an NPC enemy type.  There are multiple types of skimmers planned, so they should be in a category, but putting them in ships doesn't seem quite right.  Also, the Scarab surface recon vehicle is pilotable by the player but putting it in ships doesn't feel right, maybe a category called pilotable, which would include all things player piloted, which would not simply be a list of all ships because some are not pilotable (such as battlecruisers and interdictors).  Any help on how to create stuff like this would be appreciated.

Please note, I do know how to add a page to a category, just not how to create a new category so that new pages can be grouped together.