Contents S Commands | Print pageSPREADSPREAD, VALUETurns on a dashed tolerance curve for the subsequent curve plots.POST26: DisplayValid Products: Pro | Premium | Enterprise | PrepPost | Solver | AS add-onVALUEAmount of tolerance. For example, 0.1 is ± 10%.Command DefaultNo tolerance curve.Menu PathsMain Menu>TimeHist Postpro>Settings>Graph « SPOPT SPTOPT »