Hmmm… I dont make allot of use of it at the moment…
but…

as far as i figured it… you can have sample-banks…
these sample-banks are global… and NOT tied to kits
the kits itself are tied to the romslots in the bank.

So you fill the memory… save this as a bank.
make your kits… make your patterns…

store this is as a WHOLE on the +drive…
or switch the memory-bank… and all the kits and patterns
will make use of the new samples that are in THOSE slots…

and yes… this means that if you have a kickdrum in slot 1
in bank 1… but in bank2 you have a snare in slot 1… your patterns
will sound weird if you switch banks… so your better off
to fill each slot with “the same type o sample” so when you switch banks
your patterns atleast make sence…

I hope that somebody with more uw-experience tell where my
though-train derails… cause i am sure i am missing out on something