Just the one saved setting as far as i know. I'm running one on my Soarer and basically once it had been dyno tuned properly i've left the settings as is although they can be changed at any time at the press of a button!
I think presaved settings would be a great idea though. Possibly the SAFC-II has them?
it does, two.
Thats the main selling point of it, and possibly the power FC over the S-AFC I.
You could get the car dyno tuned on a hot summers day and a cold winters day and remember the settings and enter them manually as dan said, but it would probably be cheaper to go for a II from the start