This is awesome. If canvas were added I would make this. Although I would make the meta cables connect to exactly the parameter then if it’s shown in mixer view (preferably). It could be a layover for current track. Oh and I’d make the faders just like normal but indeed show I/O at the same time (another wish expressed by many indeed).
Cool work!!
Because this is all gonna take a lot of time before something like this will be implemented (no disrespect intended), I’ve made a little beta tool so one can at least route meta (CV) signals using keyboard. link!