On my old iMac I had a 3tb fusion drive, and I used Bootcamp to install windows on the HDD. I'm replacing that mac with a riMAC, and this time I went with an internal ssd instead of the fusion. Since the ssd is much smaller, I'd like to get an external ssd to run windows off of. Is this possible? Can I get a bootable copy of windows on an external drive with Bootcamp?