This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
This is a gavotte feature.
Implemeneted in release551 branch. Right-clicking on most widgets will present a context menu, which includes Cut, Copy, Paste, and Delete. They are basically working, although you can paste in places where you probably shouldn't (e.g. paste a partnerLinkType to a portType).
Verified on Windows XP with Hula 070329_14 and JDK 1.6.0_1 that the feature exists.