title: Allowing user to edit only the page content and some custom fields in wordpress
body: <p>This is the site:</p>
  
  <p><a href="http://www.backpackers.rs" rel="nofollow noreferrer">http://www.backpackers.rs</a></p>
  
  <p>Using "User Role Editor" i have user group that can only read and edit published pages so i can have as many users as i want in that user group and they all will have only one published page on their own so they can edit only that page.</p>
  
  <p>Now, this is how a user in that user group currently is seeing "edit page" page:</p>
  
  <p><a href="http://i39.tinypic.com/rwuesh.png" rel="nofollow noreferrer">http://i39.tinypic.com/rwuesh.png</a></p>
  
  <p>What i need is to disable all those things that have a red border around it + something with custom fields. So i need to disable these things for user in that user group:</p>
  
  <ol>
  <li>ability to change status of the page</li>
  <li>entire "Attributes" block is something that he/she <strong>must not</strong> see or be able to change</li>
  <li>ability to change something in "Discussion" block</li>
  <li>he/she shouldnt see "Page revisions" block</li>
  <li><strong>i need a way to give those users ability to use only some custom fields</strong>. Currently we have 6 custom fields, and i want to give these users ability to only use 4 of those custom fields.</li>
  <li>i need to disable these users from creating new custom fields.</li>
  </ol>
  
  <p>I dont need complete answers for these things, something to get me started is really what i need. I have been reading codex a lot, but still didnt find something to help me with this, so basically any answer is more then appreciated!</p>