Accessing the default MarbleNavigator widget of a MarbleWidget

[Tobias Leupold]

Hi List!

(I'm following the IRC channel advise "Nobody around to answer your question? 
Please write to the mailing list marble-devel at kde.org“.")

When I'm using a default MarbleWidget, a bunch of floating items are shown, 
which I can show/hide using the float item slots 
(MarbleWidget::setShowOverviewMap, MarbleWidget::setShowScaleBar and so on).

There's no such function for the default navigation widget, which apparently 
is a MarbleNavigator.

How can I access this widget to hide or show it? I neither found something in 
the API docs, nor did I find where this is constructed and added in the 
sources.

All help would be greatly appreciated!

Cheers, Tobias