title: UI-GRID Expandable Grid. Programatically expand one row
body: <p>I want to hide the + icon in the far left column and add another icon.</p>
  
  <p>When the user clicks the new Icon I want to programatically expand that specific row.</p>
  
  <p>I see there is gridApi.expandable.expandAllRows();</p>
  
  <p>Is there a way to expand just one row?</p>