You can already create a category only visible to a certain group by creating such a group and selecting the privileges in the ACP.
custom metadata in a post
Is it possible to include additional metadata into a post? I am looking to have users write game reviews on my site, and include some sections with key information for searching and creating embeds. The more customizable, the better, but I would ultimately want something like:
- Date (maybe just from the post creation time stamp)
- Author (pulled from the original post)
- Review Score