Hi,
Actually we had an idea for something like this in Voxeliens... the idea was that there would be boss levels where the boss ship was made out of voxels and you can blast holes in it. It was a cool idea but we didn't really have time to implement it (note that Voxeliens used PolyVox, but not Cubiquity or Unity3D).
Anyway, it seems you are talking about something like
StarMade or
ScrumbleShip, where the individual ships are made out of voxels and can move independantly to eachother? This is possible in principle but not really exposed at the moment. PolyVox can do it becuase the API is quite low-level, Cubiquity can do it in theory but I've never actually tested it, and the Cubiquity-Unity integration doesn't yet have this functionality exposed.
It will happen eventually though because I think it has a lot of interesting possibilities, and we'll be sure to add a demo to the Cubiquity-Unity integration package.