anchor.diff:  
   <% content_for :page_actions do %>
     <ul class="actions inline-menu">
  -    <li>
  -      <%= button_link_to new_button_text, new_object_url, { icon: 'plus', id: 'admin_new_named_type' } %>
  -    </li>
  +    <% if can?(:create, Spree::ReturnReason) %>
  +      <li>
  +        <%= button_link_to new_button_text, new_object_url, { icon: 'plus', id: 'admin_new_named_type' } %>
  +      </li>
  +    <% end %>
     </ul>
   <% end %>
   
  
positive.code:             <%= Spree.t(named_type.active? ? :active : :inactive) %>
            </td>
            <td class="actions">
              <% if named_type.mutable? %>
                <%= link_to_edit named_type, no_text: true %>
              <% end %>
            </td>
  
negative.code:   </table>
  <% else %>
    <div class="alpha twelve columns no-objects-found">
      <%= Spree.t(:no_resource_found, resource: resource_name) %>
      <% if can?(:create, Spree::ReturnReason) %>
        <%= link_to Spree.t(:add_one), new_object_url %>!
      <% end %>
    </div>
  <% end %>
  