typedef [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IEditorViewportLayoutEntity](API\Editor\EditorFramework\IEditorViewportLayoutEntity) >const [FAssetEditorViewportConstructionArgs](API\Editor\UnrealEd\FAssetEditorViewportConstruction-) &)> FFactoryFunctionType