<p>You can forbid access to categories. Switch the category access type to "private" if you want to manage permissions.</p> <p>You can set a category to private by editing a single category (<span class="pwgScreen">Administration » Categories » Manage » edit</span>) or by setting options to your whole category tree (<span class="pwgScreen">Administration » Categories » Properties » Public / Private</span>).</p> <p>Once the category is private, you can manage permissions for groups and users with 3 screens:</p> <ul> <li><span class="pwgScreen">Administration » Users » Manage » permissions action</span> (one link per user)</li> <li><span class="pwgScreen">Administration » Users » Groups » permissions action</span> (one link per group)</li> <li><span class="pwgScreen">Administration » Categories » Manage » edit category permissions action</span> (one link per category)</li> </ul>