Menu improvements for Paperpile PDF viewer

Could you please add a couple of more buttons in the paperfile PDF viewer so that it is possible to label and categorize the paper while reading it? I would also appreciate if you could include a few more stamps/drawing markups in the annotation. I understand that one can use the pencil to draw, but it would be good to include at least a checkbox, cross and exclamation mark to the current set of options. Thanks for considering this request.


I would also really like to be able to manually edit metadata about the paper by/while looking at the pdf in the viewer