API Reference > presentation-common > PresentationRules > DEPRECATED_RelatedPropertiesSpecification > propertyNames propertyNames Deprecated Use DEPRECATED_RelatedPropertiesSpecification.properties attribute instead propertyNames: string[] | RelatedPropertiesSpecialValues List of names of related class properties that should be included in the content. All properties are included if not specified. Defined in presentation/common/src/presentation-common/rules/content/modifiers/RelatedPropertiesSpecification.ts Line 120 Last Updated: 11 June, 2024