Multiple item selection - need more options, like citekey, add tag, etc.

 In the old version of papers, I could select several references at once. Then, I could export the bibtex reference (or now citekey) for several papers and past that into a Latex document. Or I could add a tag to multiple papers I had just imported. Some of these options are available if you select one paper, but not if you select multiple.

I have to continue using the old Papers version until you have this because these abilities are central to my to literature review and writing process.