PDF export options: artboard title, 2-up view, prototype links
In the PDF export process, there should be some check boxes.
One should allow you to include the Artboard title.
One should allow you to arrange the Artboard's in 2, 4 and 6 up options on a page (I accomplish this by opening in Preview on the Mac and printing as PDF and using the Mac's layout feature), but it would be nice to have it built into XD.
One should allow for printing the Prototype links between Artboard elements, using some type of ability to tile the output to a multiple page pdf that can be printed and reassembled on a wall.