2) Saving a Track to an APT is approximately 2.5 times faster than exporting the same track as a WAV.
3) Saving a Track to an APT automatically freezes the track. You have to manually freeze a track you exported if you want to use the original track material without it regenerating.
4) Saving a Track to an APT color codes the track so it's obvious at a glance you've converted the Track to an APT.
5) Saving a Track to an APT renames the track so it's obvious at a glance you've converted the Track to an APT...
But are we sure this is true for Mac users?
The only way I was able to create an APT at all was using your method where I first generated a WAV, and copied it elsewhere on my hard drive and then imported it back into BIAB as an APT. That's not faster... that is several steps beyond just creating a WAV.
I'll take another look at it, but since the Mac version has nothing in the PDF or in the GUI guide about this, I really wonder if you are describing a feature that Mac users don't actually have fully implimented. I would like to try this and see exactly what happens if I create several APTs and get a grasp on the benefits you are suggesting.