Instead of reordering pages in the "Arrange Pages" screen, you can swap images on the page with new or unused photos in the tray at the bottom of the Editing Page screen.
To swap images:
- Go to the Editing Page screen by tapping any page in the Arrange Pages screen.
- Be sure the photo toolis selected.
- Drag a photo from the tray onto the page image.
If you don’t have any unused photos in the tray, press the plus "+" button to add more.