Animating a property means to link a widget property to a bound data component value, so that the widget can display any change in value as it occurs.
The widget properties display in the Properties side bar (or window, if you double-clicked).
The Animate window opens. If you have more than one binding associated with the widget, all bindings are available in the Binding options list.
The Animate window disappears and the binding opens in the properties side bar (or window).