    </ul>
    </td>
  </tr>
  <tr bordercolor="#000000" bgcolor="#66FFFF"> 
    <td height="21"><b>Properties for expressions</b></td>
  </tr>
  <tr> 
    <td> 
      <ul>
        <li> <b>Display Mask</b></li>
        <li><b>Identifier, to reference from other controls</b></li>
        <li>Don't print repeated values option</li>
        <li>The expressions can be grouped with <b>sum, avg</b>...</li>
        <li>Export expression, line, position, size and format to build custom 
          text output.</li>
 