I might be missing it, but there doesn’t seem to be an option to cite the paper I am reading in the PDF reader- which would be nice as a lot of times I highlight or copy a paragraph and paste it into my note app- at which point I want to include the citation.
Even better yet would be the option to to copy into the clipboard a brief citation with a share or personal link in markdown format [Smith et al, 2018](personal paperpile link). These could be added to either the … menu on the left or the setting menu on the right.