Since you've got the Unicorn account, you could always set up all of the cases as a single 'mock-up' in a single case layout, and use the various blind panel 'dividers' in a proper case style to give you the right appearance. Of course, this gets limited if the cases, side by side, exceed the maximum row length, but you could still do this as two-over-two or something similar. Just make sure to do the math to allow for the extra 4hp or whatever to put in the dividers for the whole system mock-up. Done this a number of times, and it's worked well for me.