Category information can be added to your eBay store.
You can add your own category information to any of your eBay stores, and you can search category information for the other marketplaces.
Certain categories do not allow you to edit them – this is because they are standard categories potentially used by more than just you. To view, and in the case of eBay create and edit categories, go to the Categories page (Stock --> Categories).
You can create and edit Properties for the category, by choosing whether the Property is a date or a number etc. you will be prompted to enter the correct type of data.