title: PowerPivot remove subtotals by default
body: <p>Is there a way eliminate subtotals by default in PowerPivot?  </p>
  
  <p>If fields are selected, it is possible to manually remove the subtotals from the worksheet. However, after removing and then re-adding the fields I see subtotals again.  </p>
  
  <p>If possible, how can I default to this behavior in which no subtotals are shown by default?</p>