In previous applications of LASSI to transition metal systems, construction of the model space was carried out entirely "manually", i.e. the number of electrons and spin for each fragment in each state was decided by the user. This manual control facilitated a deeper understanding of the physics of the test systems; for instance the different contributions to the exchange coupling constant, J, for a simplified model 22 of Kremer's Dimer. Nevertheless, for larger systems, this manual state selection process is time consuming, error prone, and non-scalable.