It has a uproperty to set the voxel scale for each actor / terrain to any value. Granted you have to keep in mind that the smaller the voxels are the more memory is consumed per square meter of the stored volume. 1cm scale voxels are not very useable in large (world space) volumes because of the memory and extraction overhead. My test levels are generally 1/10th of a meter cubed per voxel though.
That is pretty much the exact thing that this would off the bat be best for, is map based destructible and buildable voxel projects.