Doubt it will work without major modifications to the metro, the metro boards sit flat on the ground like the nano, they are not slanted like the the pt2. So if your gonna put a dc10 under it, better get some really tall feet for the metro. Or get a dc5 or Adam.
I emailed them about this and they said that it won't fit in any of their cases once we add the feet. If possible, maybe you can put the supply on top of the board to make it all work. Another option is that you remove the foam from the hard case, but it's a pretty tight squeeze and it's not as safe for the pedals. The soft case definitely won't work unless you put the supply on top.