Depends on what you want to do; you skipped the cast and still working with the widget component rather than the widget inside it. You will be able to show / hide it - drag the Return Value on the New Visibility pin. But you will not be able to send / pull any data from the widget.
edit: a zipped project from the demo above in case you want to take it apart
https://drive.google.com/open?id=1_ksGX-Zusqra_bFwOJ7DbfwXzsZVRnYN