Parameter flow variables 1-2

Parameter Flow Variable Use-cases: Use the parameter flow variables to control command-line options not exposed in the configuration panel. This is illustrated for the protein preparation, Shape Screening, MacroModel minimization, Molecule reader, and other nodes. [Version: 2.7.4][Requires (optionally): (MacroModel, Phase, LigPrep, Prime)][Keywords: Parameter flow variables, Quick form]

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