title: Django-guardian. How to filter permissions list?
body: <p>I'm using <code>django-guardian</code> to manage my permissions. Default each model has 3 perms: <code>add</code>, <code>change</code>, <code>delete</code>. If I add my own permission e.g. <code>view</code>, I will have all 4 in User managment tab and all 4 in model-object managment tab.</p>
  
  <p>I know that is possible to filter permissions: <a href="https://stackoverflow.com/questions/6589485/django-admin-change-permissions-list">Django admin - change permissions list</a></p>
  
  <p>But I don't know how to filter permissions in model-object managment tab. Is it even possible?</p>