Hover Citation + Return to Original Citation Site in PDF Annotator

I would be interested in a new feature in the PDF annotator where if you hover over a citation, that it displays information about the paper. This would be especially useful for papers where the citation format is something like “this was shown before [1]”.

This feature is implemented in https://www.arxiv-vanity.com/papers/1709.06126/ (hover over one of the citations to get the popup).

A related feature that would be helpful is being able to click on the citation (implemented) and have a hotkey to jump back to the original location (feature request).



It is really difficult to go back after going to the page where the clicked citation is located. A popup would be great instead of jump back hotkey.