Hiding layouts in BorderLayout - how to?

[Acamapichtli]

Thank you for your reply and your corrections, but I'm not sure if I understod you right (I'm not native english speaker).

get the west / south widget and call hide on it.

I can't use something like:

WestWidget->hide();

WestWidget->hide();

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Even if I'd put in WestWidget some QHBoxLayout, nor I can't do this:

qhboxLayoutInWestWidget->hide();

qhboxLayoutInWestWidget->hide();

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What do you mean to call hide on them?

Why are messing with QDockWidget here?

West widget has another BorderLayout, and its Center Widget will cotain a lot of layouts and widgets which I want to switch with something (something like TabDialog), but I haven't decided about it yet.