How do i cast to a widget blueprints?

So let me see to make it clear this get all widget of class node is like casting but for widget and without having to use object right?. then i chose the blueprint i wanna get things from in the get all Widgets of class, then get all actors in array or something right then promote it to a variable so i can use it as a reference for the items i wanna call and use in the player blueprint right