title: Jasper report: two detail sections?
body: <p>I've got a jasper report to do, with data like this:</p>
  
  <pre><code>Item  | Quantity  | Color
  ------+-----------+--------
  A001  | 1         | Red
  A001  | 1         | Green
  B002  | 3         | Red
  B002  | 3         | Purple
  </code></pre>
  
  <p>The report is grouped by Item/Quantity, e.g.</p>
  
  <pre><code>Item: A001,  Qty: 1,  Colors: Red,Green
  Item: B002,  Qty: 3,  Colors: Red,Purple
  </code></pre>
  
  <p>Now I've got this Jasper report that already groups as such - i.e. shows a heading with the item and quantity, with a list of colors underneath.</p>
  
  <p>The question now is, underneath this group I need to display a number of horizontal lines (for someone to write something in), equal to the qty of the item. e.g. underneath the A001 group I need to display one line, and under the B002 group I need to display three lines, like so:</p>
  
  <pre><code>Item A001, Qty 1, Colors Red, Green
            _________________________
  
  Item B002, Qty 3, Colors Red, Purple
            _________________________
            _________________________
            _________________________
  </code></pre>
  
  <p>I've tried looking at jasper scripts, but it seems they can only manipulate report parameters/variables.</p>
  
  <p>Does anyone have an idea of how I could do this?</p>