Creating new tags that don't exist for beer pages

Pretty straightforward. Being in the kitchen, you kind of grow more and more curious as to what you can find in beer these days. I never tried to do this before, but now that I actually have time to sit down and explore some of the features I perhaps took for granted, I was wondering if someone could point me in the right direction to get this accomplished. I have more than 25 additions I know for a fact are not saved into the loggable tag options with the rest.

Thanks

Found this https://www.ratebeer.com/Tags/tagmanage.asp after finding the "Add Tag" button, but nothing happens. Was the option to add new tags disabled?