API Reference > presentation-common > PresentationRules > SelectedNodeInstancesSpecification > acceptablePolymorphically acceptablePolymorphically acceptablePolymorphically: undefined | boolean Should SelectedNodeInstancesSpecification.acceptableClassNames property be checked polymorphically. If true, all derived classes are accepted as well. Defined in presentation/common/src/presentation-common/rules/content/SelectedNodeInstancesSpecification.ts Line 41 Last Updated: 29 November, 2022