The SDL Web / SDL Tridion Sites Content Manager allows to set metadata on all kinds of items like keywords, folders, components, etc. I would like to able to set metadata on Categories as well.
Use case: When importing categories and keywords from an external source, I need to store the external id in the CM categories and keywords. I would like to use the keyword metadata (or keyword key), and category metadata, for to store this external id. Currently we are missing the category metadata capability.
A workaround is to use app data on the category to store the external id. This app data however is not visible in the CM GUI.