Yes, a lot of us want to be able to do this from the VST, especially with our ES interfaces! Good news–it is going to be added (although there’s an ASIO limitation that may limit it to other drivers on Windows systems):
As to the scaling issues with direct outs, I’ll try this with Bitwig and ES-9 when I get a chance and report back if I find anything useful. I’m sure others have already tried this and may have immediate insights. It doesn’t sound like you’re using Audio-2 (or that DC blocking is your problem), but heads up that if you are it has DC blocking enabled by default (unlike the others).