Thank you @jarednichols I've found out there's no way to restore devices
at the same time with small steps like AC1's automatic restore under
supervised mode.(Maybe restoring backup and preparing are required...)
I'm trying to find out how to manage iOS devices with AC 2.0 like using
supervised mode in AC 1.7. It's totally different and doesn't refresh
(restore) devices with just plugging them to Mac with AC 2.0. I think I
need to repeat 1-2 steps below by ha...
