A.878 - A script to carry out simplistic multiple alignment of identical molecules (in terms of sequence, e.g. NCS-related molecules or multiple NMR models) is file://rose.bmc.uu.se/pub/gerard/omac/multi_lsq. It aligns up to 25 chains or models in one PDB file, and prints the RMSD of all CA atoms and of the core CA atoms after LSQ-operator improvement. All chains are aligned to the first one in the file (hence, the "simplistic"). This is a quick way of aligning multiple NCS molecules or NMR moels to see how similar/different they are.
NOTE: there is also an option in LSQMAN nowadays which does this.