100% Zoomed Image Windows Explained

This window is a 1:1 pixel representation for the currently image in the Whole Image Window  Use it to look around the image at full size and review where the system has decided dust spots exist. 

This window is interactive to the extent that left clicking on it will cause the software to look at the current cursor location for anything it can identify as a dust spot if one is not already there!. If you click on an existing dust spot the system will remove it from further processing.

NOTE also the Pixel Information display will track the cursor information for you!