[news.eclipse.platform] Enabling Handlers based on Perspective

[da_jainer@xxxxxxxxx (Devesh)]

Since we cannot use "activePerspectiveId" or something similar in 3.3, do 
we have a way of associating command handlers' "activeWhen" or 
"enabledWhen" with a particular perspective.
I know we can do this with "visibleWhen" on commands using dummy actionset.
But is there a similar approach for handlers
Thanks
Devesh