Anderton
bvideo
Based on your answer in the other thread, it sounds like the audio has to be populated (bounced) into the aux track, not just echoed through it for these purposes. So no such thing as "virtual" audio...
Remember, you have to make a clip an RFX. You can't make a track, the structure that holds the clip, an RFX. If there's no clip, there's no possibility to create an RFX from it.
Technically, we can make a selection that is not a whole clip, or contains multiple clips, overlapping or not, or portions thereof, including even
blank space on a track, and make that into an RFX. Seems there is some function that is serving audio to the region effect and converting the selected region to a new special Region FX clip. It was interesting to think of an aux track as a place where audio from other tracks could be served to a region effect. I.e. not just mixing and concatenating clips that are on the track, but delivering audio through a patch point from existing audio on the contributing tracks. Wild speculation, of course. But then Noel says "The future is wide open :)". I wasn't thinking to propose this, just asking in order to get a feel for aux tracks.