Hello!, DMAP (Direct Matrix Abstraction Programming) is a high-level programming language that is available in NX NASTRAN. All solution sequences in NX NASTRAN are comprised of DMAP statements. Any solution sequence may be listed by inserting COMPILER LIST into the Executive Control Section of the NX NASTRAN input file. DMAP alters allow you to modify any solution in NX NASTRAN. DMAP is not part of the FEMAP with NX NASTRAN BASIC bundle, requires an additional license. Best regards, Blas.