Is it possible for Superclusters to have their own spin or some sort of movement together as a cluster?
When they form, all clusters of stars or galaxies add together the momentum vectors of their constituent stars or galaxies. The sum can be expressed as a single rotational vector and linear momentum vector. If they all eventually merged into a single object, such as a neutron star or black hole, then it would have those same vectors. It is highly improbable that the sum of all the vectors would just happen to be zero.