[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FDocumentTabFactory](API\Editor\UnrealEd\WorkflowOrientedApp\FDocumentTabFactory) > FindSupportingFactory ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FTabPayload](API\Editor\UnrealEd\WorkflowOrientedApp\FTabPayload) > Payload ) const