Make certain sections, categories and articles on the Front Knowledge Base locked so only certain people can edit them

We have our HR policies on our knowledge base as well as team specific processes and information for training etc, and we have had to revoke certain knowledge base content creator's access to edit their team specific processes because we do not want them to have the ability to access and edit the HR specific policies that are also on there. It would be great to have further tiers of access to the knowledge base as to what can and can't be edited by certain individuals.