I'm trying to put together a basic workflow of a content writer and editor.  I've got a writer setup with restricted access to the content section, but how do I restrict their access to only one child (and corresponding sub-children) within the content section.  For example, we have a Knowledgebase section that will have multiple articles.  How would I restrict the user to just that section?  I tried to edit user permissions and check only that box but they still seem to have access to everything in the content section.

Also, how can the editor see who completed what changes and what changes they have to approve?

Thanks!