1. Select an even number page in Page Layout Palette

  2. Right Click (Windows) or Ctrl Click (MAC) on the selected page

  3. Select Section, and Rename page <Even number> to <Even number 1>

  4. Insert a blank facing page before <even number > as soon as cursor changes

  5. Release the mouse and it would shift the <Even number > on right hand side.

  6. Delete the blank page

Note: This is fixed in QuarkXPress 8.5