title: How do we group in BIRT without wasting lines, and still only printing the group item on the first line?
body: <p>When grouping in BIRT, we frequently want the grouping value to show up on the first line as follows:</p>
  
  <pre><code>Group   User                       Reputation
  ------  ---------------            ----------
  Admins  Bill The Weasel                51,018
          Mark Grovel                   118,101
  Users   Pax_my_bags_got_to_go          73,554
          Jon Scoot                  **,***,*** &lt;- overflow
          Clueless                       92,928
  </code></pre>
  
  <p>The normal way of acheiving this is to lay out the group in the designer as follws:</p>
  
  <pre><code>        +---------+--------+--------------+
  Tbl Hdr | Group   | User   |   Reputation |
          +---------+--------+--------------+
  Grp Hdr | [Group] |        |              |
          +---------+--------+--------------+
  Grp Dtl |         | [User] | [Reputation] |
          +---------+--------+--------------+
  Grp Ftr |         |        |              |
          +---------+--------+--------------+
  Tbl Ftr |         |        |              |
          +---------+--------+--------------+
  </code></pre>
  
  <p>which, unfortunately, lays out the data in <em>exactly</em> that way, with the grouped value on a different line:</p>
  
  <pre><code>Group   User                       Reputation
  ------  ---------------            ----------
  Admins
          Bill The Weasel                51,018
          Mark Grovel                   118,101
  Users
          Pax_my_bags_got_to_go          73,554
          Jon Scoot                  **,***,*** &lt;- overflow
          Clueless                       92,928
  </code></pre>
  
  <p>This is particularly painful with data where there's lots of groups with only one user since we use twice as much space as needed. If we move the <code>[Group]</code> data item down to the <code>Grp Dtl</code> line, we get it printed for every line in the group.</p>
  
  <p>How, in BIRT, do we merge the two lines <code>Grp Hdr</code> and the first <code>Grp Dtl</code>?</p>