Running two Instances of 'Open Image file list'

This option allows you to compare the matching images in each folder and check for missing images or unsuitable pairs.
1. Open Image file list
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2. Open another instance (or push 'I' key)
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3. Select Left and Right folder
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4. If you wish to swap-over the folders, click the toolbar button.
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5. If you wish, hide the Tree-view (or push 'T' key)
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6. You can scroll the left/right folders together (i.e.synchronously) in three possible ways:-
Using the mouse-wheel, the U/D keys or the toolbar buttons.
With the mouse, it may be necessary to click on either window first.
To scroll independently, use the window's right-hand slidebar.

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7. You can select extra Large.
When you select extra Large, SPM does not use Exif thumbnails. It is too slow.
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8. You can change the 'Extra large' thumbnail size in Preferences.
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9. You can open Left/Right images from each folder.
Select one image from Left folder.
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10. Select another image from Right folder.
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11. Open L/R images (or push 'O' key)
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12. Open SPM