I'd like to see CTL-double-click reset all faders to 0 dB.
Instead, it does a strange thing: the fader you clicked on goes to 0 but then every other fader gets the same adjustment. For example, if the one you double-clicked had been at -3, it goes to 0 and every other fader gets increased by 3dB. I see the internal logic, but not the practicality.