Image Capture Improvements ("Slice"/Batch Select and Export Feature)

It would be great to have a more robust image capture and image export system. In essence, I would like there to be a way to specify several regions on a score, then export each region all in one go as a specified file type. It would be further ideal to be able to export multiple filetypes at the same time, e.g., pdf, svg, and png through an add filetype dropbox. This would replace the current system that requires a user to define a region, export, select filetype, select folder, repeat.

The image capture feature is widely used by music educators and students. A more robust system would be a great addition to MuseScore! For inspiration, see Dorico's implementation of the "slice export feature": https://www.rpmseattle.com/of_note/graphic-slices-new-features-in-doric…

See this thread on the Musescore forums: https://musescore.org/en/comment/1059569#comment-1059569