Thanks a lot for the review. I don't think I will make a "save to file" functionality (Not even sure it is possible for security reasons). But I could easily make a one-click "copy meta-data" functionallity, essentially doing same thing as marking meta-data in popup and pressing Ctrl-C. Would that be useful?

Update Dec 15th 2020: Well, I added a "copy to clipboard" button in latest version 2.0.