API Reference > presentation-backend > Core > PresentationManagerProps > mode mode mode: undefined | PresentationManagerMode Presentation manager working mode. Backends that use iModels in read-write mode should use ReadWrite, others might want to set to ReadOnly for better performance. Defaults to ReadWrite. Defined in presentation/backend/src/presentation-backend/PresentationManager.ts Line 261 Last Updated: 12 June, 2024