Categorized favorited posts

Hi,

I have a webpage, which is knowledge base with a lot of posts (over 3k). I need a plugin which allow users to add post to favorite but also with category. So for example user can add a post to category which he created like “important” and another post for category “less important”. Categories in favourite should be editable for users.

Users should be restricted only to their own categories – so they cant edit category of other users or change categories or post added by administrator.

I thought also about managing the roles so maybe there is a plugin that allow create private categories (visible only for that user) and adding/removing post to their own category (so they cant change category added by admins or change other user category)

Im actually using Favorites plugin, but it allow to add post only to one category – favourite.

Is there any solution?