[news.eclipse.platform] How to set a PropertySheetPage's selection

[Jasper <jasper.noid@xxxxxxxxx>]

Hello all,

I want to tell a PropertySheetPage which property to select. A little 
investigation revealed that the PropertySheetViewer used by the page, 
has a method #setSelection with a do-nothing default implementation. So 
I figured I'd write an override, only to discover that 
PropertySheetViewer is not a public class, so no go.

Does anyone know how to do this?

Thanks,
Jasper.