It would be cool if one could select a bunch of plug-ins and, with a modifier key for instance, toggle each plug-ins bypass independently. This would open up so many new possibilities for plug-in (and plug-in chain) A/B testing, e.g. when doing a limiter shootout.
So just to be clear, one example:
plug-ins A and B are un-bypassed, while C and D are bypassed. Select plug-ins A, B, C & D, and with modifier key + bypass (hotkey?), A and B are bypassed and C and D are un-bypassed. I hope this makes sense.
If you are using a montage, there is a kind of workaround for this now: new>exact duplicate (using the same audio file).
This creates a temporary duplicate montage that allows you to substitute plugins/settings and audition other things like envelope modifications … side by side with the original montage/settings. Depending upon how you work this can be super quick and useful. Plus it’s easy to copy and paste things like envelope changes to the original montage.