gn="top">No</td>
  </tr>
  <tr>
    <td valign="top">Extdirs</td>
    <td valign="top">Override location of installed extensions</td>
    <td align="center" valign="top">all</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">Overview</td>
    <td valign="top">Read overview documentation from HTML file</td>
    <td align="center" valign="top">all</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">access</td>
    <td valign="top">Access mode: