Expanding and controller questions

My company finally filled (physically, with drives) our XRAID. There are now 14 750gb drives in it.
At this current point it sits like this:
XXXXXXX YYY ZZZZ
X = blank drives on upper controller
Y = raid 5 with spare on lower controller
Z = raid 5 with spare on lower controller
My ideal situation would be:
YYY YYY Spare = RAID 5+1 and spare on upper
ZZZ ZZZ Spare = RAID 5+1 and spare on lower
I know how to expand arrays using RAID Admin, but I'm not sure how to MOVE and array from one controller to the next. I would need to move one array to the upper controller and then expand it, and then expand the array on the lower.
Is it: create the array on the controller then copy the data over?
Or: create the array and physically swap the drives?
Or maybe its neither and I have this all wrong. Any advice would be appreciated, thanks.
Thanks for the help
Matt

Thanks everyone for your help.
So I guess the plan is to build an array on on the upper, copy the data to it, then break and rebuild the other. Not as easy as I hoped but doable.

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    gniemcew wrote:
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    gniemcew wrote:
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