Would be extremely useful to be able to set just a key shortcut (e.g. F1, F2, B, N, M, etc.) for viewing only a specific layer.
Why would users need this?
It would be extremely useful when tracing images so we can go back and forth between the source/reference image and what we are illustrating/vectorizing.
It can be useful for users that draw after reference photos, so they need to see the reference photo instantly and go back to drawing.
Why only one shortcut? / You can't just go and put the reference layer as the top layer and hide (uncheck) and show (check) whenever you want?
It would be faster and more handy to have a simple one key shortcut like B or F3 that we can press to view the reference. If we don't press that shortcut anymore, it should go back (hide the reference photo/layer).
Here's how it could work:
So when the person presses the F3 key, it could show the reference layer.
Could be also used for Before/After viewing of a design/illustration/painting/image/etc.
What's your opinion on this? It should be implemented?