Allow us to define page depth
Page depth (length) is definitely an insanely obvious feature. Was trying to use Xd for a new site design, and the lack of page depth controls was a glaringly obvious missing. So... it's back to Illustrator!
Xd seems obviously designed by someone who only has "a screen at a time" in mind. Anyone who actually builds sites would know instinctively, that screen geometry is merely a window on a whole scrolling page.
Thanks for your interest! Unfortunately, we asked for more clarification on your original feature request, and have not heard back in five months. If you are still interested in this issue, please do file it again!
AdminCorey Lucier (Adobe) (Admin, Adobe) commented
Yes, As Stuart points out you can specify a viewport size for an artboard as well as content size.