/indra/newview/skins/default/xui/en/floater_test_navigation_bar.xml

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<floater
 legacy_header_height="18"
 can_resize="true"
 height="200"
 layout="topleft"
 name="floater_test_navigation_bar"
 help_topic="floater_test_navigation_bar"
 translate="false"
 width="900">
  <panel
    name="navigation_bar"
    filename="panel_navigation_bar.xml"
    left="10"
    right="-10" 
    top="30"
    height="100"
    border="true"
      />           
</floater>