Yeah, it was quite a discovery for me. I had been clicking "No" to "Save session as default" because I didn't get it. Then I spent a week recording two guys with 7 mics (2 guitars, 2 vocal mics, a fiddle, a mandolin and a talkback) down in the Austin area, and damned if I couldn't assign the ins & outs once, tell it to save as default, and not have to touch anything for the next song. I now use this all the time.