I know that I am too late but there is one very elegant solution. You can add a not visible textbox in the detail section with =1 as data and running sum over the group. Then in the detail format event add code that hide group elements only when running sum text box is >1. Note: Provided they have been moved from the group area to the detail area without of course removing the group area (it just won't contain the group items but the grouping will be there)