There is a new way to walk back changes you may have made to a scan.
Suppose you applied a form removal, and you want to revert back to the original.
Click the button called ‘Image Properties’
This opens up a panel below the 3D View with a list of all the operations applied. Clikc the ‘x’ to undo an operation:
This will revert back to the way the image looked before form removal was applied!
Cheers
-Menno