LP-2 questions

[Paul Sullivan <paulsull@earthlink.net>]

I'm hoping some of you are more in the know by now, I'm still not sure how 
to use many of the functions. The 3 page sheet that comes with is bare 
bones . Hopefully at some point there will be a real manual, or do a fully 
instructional video to do it justice. In the meantime, I have just a few 
questions for those more attuned to it's features and quirks than I (and 
thanks in advance):

1 )I  love the multiple layers of undo while in play, is there any way to 
undo the undo--add back the layers one at a time, until you're back to the 
original fully overdubbed loop? Like peeling an onion and then 
re-assembling it?

2) Once you've recorded a loop and it's playing, to record another loop do 
you have to go into configuration mode and shift to another slot to record 
the next loop--or is their an easier way with less button pressing?

3) Are loops automatically saved to the card, even after powering down and 
back up again? If not, is there any way to save them to the card short of 
not turning it off?

4)  I seem to pick up a lot of clicking from the rapid button presses when 
I do lots of reverse and 1/4 speed overdubs on a track--anyone else 
hearing this? Also happens during the mutiple levels of replace.

It is is a very cool box, just trying to figure it out. I like some things 
I did, but I'm not sure how to repeat them...

thanks,
Paul