I've been using Femap with NX Nastran to analyze a system we are designing. Right now, exporting from SW to Femap is a pretty poor process, as Femap only works with formats that do not contain material information. Right now, we're using Femap because it allows us to output a state space dynamics model (the MBDEXPORT command). However, if SW could do this, that would be wonderful. Is this possible?