Something like this in Audio Montage:
- Control-clicking on track panels lets you select two or more tracks (say, tracks 1 + 7 + 8);
- Pressing tab (or some other dedicated key command) rotates between the selected tracks by smoothly soloing each in turn (1 > 7 > 8 > 1… etc.).
That is for the purpose of comparing two or more tracks in the audio montage setting. Presently, it can be done, but not very conveniently.