I'll personally never understand this. It should be so easy and obvious. Like, don't they know what they've been working on? Surely someone has written it down somewhere? LOL
You can load it on a bus and have it affect the channels feeding into that bus.
You can have it on your Main Out bus and have it affect the buses feeding that, OR it can "passthrough" and affect the tracks.
You can toggle cross talk on and off, or you can set the amount with a knob.
It works like a summing mixer more so than a channel strip. It actually changes the audio engine.
I find the fact you can't just add the Virtual Monitoring Add-on to the headphone version really annoying. Why even call it an "add-on" when you can't actually add it on?