You can open several images at one time in FotoFinish. Each image opens into its own window called the image area.
You can see the Image Tabs of all open images at the bottom of your work area. This allows you to switch between images instantly. Just click the tab for any image to bring it to the front of the work area.
Image tabs at the bottom of the work area
From the Windows menu, you can change the way you view your images by selecting a Cascade or Tile view.
Cascade view
Tile view