Receipts - Header Level

Hello -

We are implementing Expenses at the moment.  One thing we've noticed is that if a user adds a receipt at the header level (expense report level), a receipt is still required at the expense line level -- seems duplicative.  My question is, is there a way to only have the user add receipts at the expense line?  Can the 'receipts  Or can it be explained why a receipt would be added at the header level?

My only thought to remove the 'header level" receipt is to use page/field configurator.