Random stuff that where I wish I could do similar in the Cubase mixer and hope to see some similarly convienient methods in the C6 mixer. Showing the small mixer here but it works the same in the extended mixer.
Moving / grouping / hiding / showing / temporary fader linking by track selection.
Navigating the mixer. Jumping from track to send destination and back. Seeing immediate lists of all source tracks for group channels and un-hiding them or selecting them from the bus. Seeing immediate lists of all source tracks for FX channels and jumping directly to the source from the FX track.
Creating sends already turned on and at unity. Drag / duplicate FX chains. Duplicating sends via drag/drop.