B787 has a knob as an alternative cursor control...... strictly speaking not an MCDU maybe as keyboard is separate from the screen, but same function. Comes in handy as the touchpad is pretty poor.
Also a knob on older Airbus MCDU for screen brightness.
A350 & A380 have (track) balls...................
Last edited by Tom Sawyer; 25th August 2023 at 03:57.
Reason: add info