layout

[pedro74]

What's the difference beetween selecting a layout in QtCreator from the toolbox or from the toolbar?
When I select it from toolbox I can see it in pink in the designer. When I apply it from the toolbar I see the result but there are no pink borders.
But I would like to know what is the difference bettween this two ways of using a layout. Thanks


edit: maybe selecting it from toolbox it's posible to apply more than one layout to one widget. But is there some other difference?