Ableton tracks in session view should have the option for the waveform sliding by in sync (Zoomable) for DJing or for live mixing to view the changes in the waveform.
I already emailed someone this and they said to post it here. Sorry for the lateness. Maybe in V 10.
You could reroute the wave form shape though the end of the chain of effects for the live mixing.
DJing could be more interactive and more live performance.
Could be vertical beside the track for room saving could zoom in or squish left or right