jqgrid : is it possible to insert a section-roll-up bar every 'n' records?

With the jqGrid is it possible to insert a section bar every 'n' records where clicking on the section-bar would toggle section expand/collapse? I am looking for a way to control the displayed height of the grid when I have set its height=100%. Here is pseudo-html showing such a section-bar inserted every 5 rows. The last section has only 2 rows. The section-bar would not have to have column-names.

 <table id='jq-table'>
   <div class='column-headers'>name....city....postal code<div>
  <div class='section-bar'>
       <row>  some data </row>
       <row>  some data </row>
       <row>  some data </row>
       <row>  some data </row>
       <row>  some data </row>
  </div>
  <div class='section-bar'>
       <row>  some data </row>
  开发者_高级运维     <row>  some data </row>
       <row>  some data </row>
       <row>  some data </row>
       <row>  some data </row>
  </div>
   <div class='section-bar'>
       <row>  some data </row>
       <row>  some data </row>

  </div>

Thanks

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You're looking for the subgrid feature.