Category and reader group management is too high level for managing content access. There is conditional content blocks, but you can't do that with a whole article. It would be beneficial to turn on/off singular articles for different readers/groups. It would also be necessary to identify and track which articles this has been done to. A mass edit function to edit or remove this functionality from more than one article at a time would also be helpful. This is specifically aimed at internal company kb articles, where the goal is to make things accessible to larger groups, and restrict manager related articles without having to manage excessive categories. This would also be used to define shared content across countries where some articles may be universal while the bulk may be different amongst countries.