Zoom slider control
I like to have a zoom slider next to the magnifying glass when working on desktop.
Especially since i use keyboard and mouse i dont have access to a touch pad at this point – a slider would help me smoothly pan in / out at the zoom levels more seamless than +/- steps as well as percentage steps/custom valuess.
Similar to the zoom level found in Apple Photos app as well as in Finder (if enabled) for thumbnails.
It will add a quick access to smooth/seamless panning in/out of zoom levels for desktop users without a touch pad.
You can achieve the smooth zoom via Alt+Mouse Scroll and Pinch-to-zoom on the trackpad.
We have also just shipped the marquee zoom tool, that allows you to zoom a specified region.
Read about the July update here: http://blogs.adobe.com/creativecloud/july-update-of-adobe-experience-design-cc-preview/
Tom (Adobe XD)
I just got a pro tip from @creationrebel: ALT + mouse scroll
Serves the purpouse of smooth/seamless panning in/out of zoom levels for desktop users without a touch pad.
Also, added goodness is that the panning will follow your mouse pointer.
I love it! :-)