I am a historian, dealing with hundreds of old letters from the National Archives in which the writers wrote in multiple directions on the same page (see image below). I need to be able to quickly flip these PDF paged right, left, and upside down. A keyboard shortcut would be very helpful on the rotate-left and rotate-right functions in the Zotero Reader. If that's not feasible for some reason, could we add an option to rotate a document 180 degrees, so the process of clicking menus only has to be done once?

Thanks for your considertion.

https://s3.amazonaws.com/zotero.org/images/forums/u420465/0wcikrn1zq0tlzjm6bpm.png