I’m just wondering, if you have any technical solution for this. I have only a manual one. So the user would need to setup manually, what Audio Return Channel has been used for this MIDI track in the plug-in. Don’t forget, you could route it to multiple outputs in the plug-in.
Don’t forget, please, the plug-in is a black-box for Cubase from this point of view. Even if Steinberg would improve/update its VST standard to get this information from the plug-in, only very few developers would follow. You can see how little developers is using VST3 today (lots of developers are still using VST2). And VST3 is on the market for quite some time, already. So this wouldn’t help neither.
So, I’m just wondering, if you would have any idea…