In Animation Shop I can view things enlarged to any size. That’s how I do my touch up painting. Easier to put text letters just where you want them.
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I guess you can scroll left or right or up or down to paint in tiny spots on huge enlarged images
I can scroll up or down somewhat at I-M but my left and right is limited to a compressed image where I see only 70% of the image
Lots of guesswork on my part is needed