If you're worried about who gets to see what, you can set up permissions based on user roles for certain documents. (elearningindustry.com)
Are you able to assign user roles with ease, or is it a time - consuming process? (elearningindustry.com)
Checking a menu item will remove it from access for Editors, so this plugin depends on you ensuring your clients User Role is set to Editor and not Administrator. (layerswp.com)