I went to the View TAB. Under "Current" on the left side of the screen, there are three buttons: Change view, View Settings and Reset View which is greyed out. There is nothing relating to Fields under them.
I have Outlook Version 10. When I click on change view, I get three more buttons that State: Compact, Single and Preview. Under them are three more options: Manage Views, Save Current View and Apply Current View.
The number is XXXXX