Share Email Facebook Twitter LinkedIn About Configuring Plumbing System Definitions Configure properties that control the appearance and behavior of objects in your plumbing system designs. Related Concepts About Configuring Fixture Unit TablesAbout Configuring Styles for Plumbing Lines and Fittings Related Tasks To Create a Plumbing System DefinitionTo Specify the Default Fittings for a Plumbing System DefinitionTo Specify Plumbing Preferences for Labels and Flow ArrowsTo Specify Annotation for a Plumbing Line Style