<P>You can see a list of existing Program Trees in the Program by selecting the <IMG src=
      "images/preferences-system-windows.png" x-maintain-ratio="TRUE" border="0"> icon. Select
      the program tree name from the popup menu; a tab is created in the panel for this tree, if
      one does not already exist. The selected tree becomes the current tree in the tabbed
      pane.</P>

      <P class="providedbyplugin">Provided by: <I>ProgramTreePlugin&nbsp;</I></P>
    </BLOCKQUOTE>

    <H3><A name="Navi