Keyboard shortcuts

Action Desktop Touch devices
Translate / Pan [drag] any of the slice views [drag] any of the slice views
Oblique rotation <shift> + [drag] any of the slice views [rotate] any of the slice views
Zoom [mousewheel] [pinch zoom]
Zoom [hover] on any slice views > [click] magnifier [tap] on magnifier
Next slice <ctrl> + [mousewheel] / [p]revious / [n]ext -
Next 10 slice <shift> + [mousewheel] -
Toggle delineation [q] -
Toggle cross hair [a] -
Multiple region select <ctrl> + [click] on region -
Context menu [right click] -

You can enable the touch interface, which is selected per default on mobile devices, by selectingthe user menu from the top right (👤), then choosing Settings and Enable Mobile UI.