Hey Stevo,
I am not sure I understood the situation – could you please clarify what you mean by “setup a widget on that page” – is it the custom sidebar drop-down in the page editor mode, or are you talking about the “Appearance -> Widgets” admin section? Also, please clarify where exactly do you choose “show” or “hide” with respect to the widget. Thanks!
Sincerely,
Andrii / Satori Studio