Well the manual is moot on your questions... however if you create patches that actually do your pans and then step through them in your desired order/affect, there's this...

From Pg 8-1

"

PRE (FS3 switch light is Off):Your guitar signal is recorded unprocessed (i.e. - the

Loop is recorded “pre” Amp & FX processing). When played back, the Loop audio

is mixed with incoming guitar to feed the current Preset’s Amp & FX processing.

If you change Presets or tone settings while set to PRE, you’ll hear them applied to

your Loop playback.

•     When the Looper is set to PRE, the Pre/Post icon appears as “POST,”

to indicate that pressing the PRE/POSTfootswitch will set the Looper

to POST.

POST(FS3 switch light is on):Your guitar signal is recorded processed (i.e. - the

Loop is recorded “post” Amp & FX processing). When played back, the Loop audio

is mixed with incoming guitar AFTER the guitar signal has been processed through

the Amp and FX. This provides the ability select a new Preset which is applied only

on your guitar input, while the Loop plays back with the original recorded Preset

tone!"

Try expirimenting to see what it does although I'd expect it only to record the "Guitar In" input and/or possibly the "Aux In".