Hi, I want to create a table with header of first two rows, and need to repeat rows form 3rd row. like

<blockTable colWidths="121.0,121.0,121.0,121.0" repeatRows="2" style="Table1">
      <tr>
        <td>
          <para style="Table Heading">H1</para>
        </td>
        <td>
          <para style="Table Heading">H1</para>
        </td>
        <td>
          <para style="Table Heading">H1</para>
        </td>
        <td>
          <para style="Table Heading">H1</para>
        </td>
      </tr>
      <tr>
        <td>
          <para style="Table Heading">H2</para>
        </td>
        <td>
          <para style="Table Heading">H2</para>
        </td>
        <td>
          <para style="Table Heading">H2</para>
        </td>
        <td>
          <para style="Table Heading">H2</para>
        </td>
      </tr>
<section>
<para style="P7">[[repeatIn(sort(o.inspection_lines),'line')]]</para>
      <tr>
       <td>
          <para style="Table Contents">[[ line.name ]]</para>
        </td>
        <td>
          <para style="Table Contents">[[ line.pipe_length ]]</para>
        </td>
        <td>
          <para style="Table Contents">[[ line.body_straight ]]</para>
        </td>
        <td>
          <para style="Table Contents">[[ line.pipe_length ]]</para>
        </td>
     </tr>
      </section>
    </blockTable>

please help.. thank.