[news.eclipse.platform.rcp] Adding perspective shortcuts from plugins

[a436508@xxxxxxx (Rakesh TA)]

I am creating a plugin that contributes a new perspective to an Eclipse 
RCP application. I want to add the perspective shortcut to the perspective 
bar (and to Window -> Open Perspective menu).

I can't use IPageLayout#addPerspectiveShortcut(String) as the page layout 
object is available only in the perspective's 'createInitialLayout' 
method. 

Is there any other way that I add a shortcut on the perspective bar?

Thanks,
Rakesh