cnchi says it doesn’t support RAID, though it does list my RAID0+1 array as an option during installation.

I’d much prefer to use the RAID disk if possible (over my 2nd HD), but I don’t want to mess up my Windows installation in the process.

Is this possible? In case it’s relevant, here’s a screenshot from GParted which shows the logical drive as well as the 4 individual drives (which makes me think it may not be possible, as the OS is aware that it’s not a single drive).