STAAD.Pro HelpTechnical Reference of STAAD CommandsTR.37 Analysis SpecificationTR.37.6 Steady State and Harmonic AnalysisTR.37.6.3 Define Load Case Number TR.37.6.3 Define Load Case Number The load case which contains the MODAL CALC command is automatically used for the load case number. Parent Topic: TR.37.6 Steady State and Harmonic AnalysisRelated referenceTR.34.2 Modal Calculation Command