<?xml version="1.0"?>
<registry>
  <!-- Allow only Link and Folder types in the navigation -->
  <record name="plone.displayed_types"
    interface="Products.CMFPlone.interfaces.controlpanel.INavigationSchema"
    field="displayed_types">
    <value>
      <element>Link</element>
      <element>Collection</element>
      <element>Folder</element>
    </value>
  </record>

</registry>
