When you get a chance, look over Restore Images Manually Mounted via SMB and check those screen shots there too as you can use this method I believe to push your images to separate partitions.
I’d say learn how to do the restores this way when the GUI method is not robust enough for you needs. While there may be a bit of learning to do to figure it out, it works wonderfully once you do.
Actually and honestly, ever since I figured out this way to restore with the restore ISO to an SMB share containing all the URBackup image backups, I always do it via this method now moving forward. I don’t do it enough to remember the entire process without referencing a printed out guide of these instructions, but it’s solid and reliable for the restore process and using Windows Servers in particular too.