Automatic isotope selection result as input for the PDE system setup for the injection of ⁵⁶Fe, tracing recursively all possible disintegration, decay, and mixed paths. The isotopes are selected if their secondary multiplicity M (identified with the pitch-angle averaged number of secondary nuclei M ↔ g_j→i(y)∕f_j(y), see Appendix A) exceeds a certain threshold, as indicated by the legend, for any 8 MeV ≲ y ≲ 125 MeV. The threshold M > 0.01 has been used for the computations in this work.