Well actually you have to call setVisible/setEnabled a thousand times if 
you have thousand widgets to configure. 

You can either do it explicitly by if/else for each widget all across your 
code base or you search (maybe DOM based)/register the relevant widgets. 
But that still means you have to mark thousand widgets to be able to find 
them (in case of search) or register a thousand widgets to some kind of 
manager class that handles the visibility stuff.

No matter how you actually implement it, you will have a good amount of 
work to do.

-- J.

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