transpose notes diatonically using arrow keys

Not sure if this is a feature request or bug, as I thought it had been implemented in MuseScore nightlies, but it's not there in MuseScore 2 (at least in the Mac version): I want to be able to move a group of notes diatonically using the arrow keys, probably in conjunction with some other key like shift or option. I know this can now be done using menus (Notes -> transpose -> diatonic transposition) but that is a pain if it needs to be done frequently. And I know it can also be one by selecting a bunch of notes and dragging them with the mouse. But this is still for me less convenient and slower than being able to use the keyboard for the operation.