title: Kendo grid group header customize to show the value and more
body: <p>I have a Kendo grid that is groupable.  The initial display needs to show all data items with no groupings displayed, i.e no 'group' and 'groupHeaderTemplate' are defined.</p>
  
  <p>The grid contains a column (Suspension) where the value displayed is a translated dataitem value, i.e. if value > 10, display '*'.</p>
  
  <p>When the user drags the Suspension column header cell to group, how can you customize the group header to show the value that it is grouping on plus the display 'value', i.e. 10-* ? </p>