Firstly, a BIG thanks for your continued support to improve Google Maps!
Google Map Maker offers you a detailed menu to add the most relevant category by providing a wide range of 2500+ categories to choose from. While we continue to expand this list, we’ve removed the ability to manually type-in the category of your choice.
Henceforth, any existing free-form categories will only be visible to the mapper who originally created them.
Once again, your understanding and patience is tremendously appreciated.