Are you referring to panning within XD itself, or in preview or a shared prototype?
In XD you can pan left or right by pressing down the spacebar and swiping left or right on a trackpad or mouse. In preview and when sharing a prototype, we have no scrolling gestures (yet) - but that's addressed in that other post.
Yes I was referring to XD itself. Yes, the [space][pan left/right] is what i was looking for, thanks!