Option to approve, show it consistently for Unapproved expenses

When I navigate to Expenses, Unapproved it doesn't show the check boxes to approve. If I select a person it does. It took me ages to work this out. I kept going to Expenses, All, and clicking on a number in Unapproved receipts. It seems a strange UI, what I think of as the same page (with or without a person filter) behaves differently depending on how I access it.