Good but missing some features

Definitively it’s a great app, flawless design (way better than the zotero or mendeley app), good integredated pdf viewer with usefull anotation tools, great synchronisation with zotero, and easy citation or pdf sharing … but some important features are missing for me to give 5 stars. The main ones are the DOI which does not appear in the info panel (and then no direct link to launch safari through doi.org, which is really usefull) and it is not possible to select several items, which mean no multiple citation drag and drop to a single collection, or items merging. I would also like (even if I know it could be tricky) have a tool to export selected collection to a .bib file.
Still a great app and looking forward to see what the improvement will be.

Gergelliom about PaperShip - Mendeley & Zotero, v1.6.2