Show multiple keyframe channels in audio tracks

I often add a reverb effect to the very end of a music track that I've trimmed; that way, I can use the reverb to make any abrupt ending sound deliberate and natural. But I have to keyframe the dry out/wet out from "no effect" to "lots of effect" at the end of the piece because I don't want the reverb to affect the whole duration of the track. It's mildly tedious having to switch between viewing the "Dry Out" and "Wet Out" keyframes (I usually add the effect to a Mix track so I can still view my clip keyframes on my other tracks). It'd be lovely if, instead of having to choose which ONE thing's keyframes we can see, we could choose MULTIPLE things. It'd be even nicer if PPRo auto-assigned (maybe user-overridable?) different colours to each keyframe "channel". 

I'm sure this would apply to many other situations too. Good idea, don't you think?