Online help:

<ol>
  <li>Select something from the tree on the left by clicking on it:
       a folder <img SRC="icon_folderc.gif" ALT="Folder icon" width="16" height="13" >,
       a structure <img SRC="icon_structure.gif" ALT="Structure icon" width="16" height="13" >,
       a label <img SRC="icon_label.gif" ALT="Label icon" width="16" height="13" > or
       an image <img SRC="icon_image.gif" ALT="Image icon" width="16" height="13" >.
       You can expand or collapse the branches of the tree as desired.

  <li>Once you have selected something from the tree, click on the
       <span class="button">Show</span> button, and
       whatever you selected should appear in the VRML viewer.
       The <span class="button">Show</span> button will change to
       a <span class="button">Hide</span> button, which you can then
       use to make the object(s) invisible again.
  <li>To manipulate the model in the VRML viewer
       (assuming that you are using CosmoPlayer),
       change from <em>Movement</em> mode to <em>Examine</em>
       mode by clicking on the little
       gear-shift lever&nbsp;<img SRC="icon_change.gif"
       ALT="Change-controls icon" height=20 width=17 align=TOP>
       and then use the
       Rotate control&nbsp;<img SRC="icon_rotate.gif"
       ALT="Rotateicon" height=19 width=29 align=TOP>
       to rotate the structure.

  <li> The two dropdown lists below the <span class="button">Hide</span>
       button allow you to adjust the color and transparency of the currently
       selected structure.
</ol>

<p>The Cosmo viewer includes on-line help for its many controls. Click
on the Help icon <img SRC="icon_help.gif" ALT="Help icon"  align=TOP width="20" height="18">,
in the lower right corner, to see what else is available. As an example
of something else you can do: click on the
Seek icon&nbsp;<img SRC="icon_seek.gif"
ALT="Seek icon" height=19 width=19 align=TOP>
then click on a structure to zoom in on it.