Indeed it's about convenience and not about expanding the range of sounds D3 can make which is why it doesn't interest me that much but I don't see how your proposal is any more convenient than what I'm proposing. I think the only disagreement is where to put the Mixer.
But once again it doesn't appear that the current Mixer Volume Destination has any effect on Osc 3 (or Noise). Perhaps that's by design or perhaps it's a bug. Either way just putting a GUI front end on the parameter will not solve that issue. Maybe someone could test it. Const>Mixer Volume and select Osc 3. Changing the AMT does not alter the volume of Osc 3 while it does change the volume of Osc1 and 2.
Here's a patch to test the Mixer Volume issue with Osc 3. Careful with the volume of your speakers and I jacked the Semitones up on Osc 3 to make it stand out, better to play a low note.
Mixer Volume Test.zip
As for pointless and useful, no feature request is pointless to the person making it, case in point this thread. I don't envy Synapse having to sort through the wish list and figuring out what can be done easily and what might take too long to implement. What makes sense to add and what doesn't. When we make requests we have no idea if we're asking for a dozen lines of code or a hundred, hours of work or weeks.
My top features requests would take an entire re-write so I don't expect them to ever be implemented but it doesn't stop me from wanting them. I can hear in my head what I would do with those features and they definitely would have an effect on what's coming out of the speakers as opposed to features that might make things a little easier.
But all we can do is sit back and enjoy the ride and see where the bus takes us. With Synapse at the wheel I'm confident the bus won't crash no matter what direction it takes.....
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