Kodak PROFESSIONAL RFS 3600 User Manual page 57

You may need to resize and reposition the Image Window to allow access
to the needed controls on the main window. To resize the Image Window
move the pointer to an edge of the window; when the pointer changes to a
resizing pointer, drag to resize the window. You can also use the normal
window controls found in the Macintosh operating system or in Microsoft
Windows.
If the Image Window is opened, controls that interact with an image —
Black, Gray, and White pointer buttons, Move, Crop, Zoom, and some
features on the Levels & Curves tab — must be performed on the image in
that window, not in the After image beneath.
Only one Image Window is available, and if you change the selected image
in the main window, the image in the Image Window also changes to match
the selected image below.
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