delving/sip-creator — pull request #342 by geralddejong (2012-11-12 16:11:19+00:00)
Title: The Cat's Meow solution for duplicating target elements

Right-click on a non-leaf non-root element and you get to invent a name for a new sibling of the selected element.

The name has no impact on generated code and therefore also not on output. It only plays the role of making all paths distinguishable.

All it does is give you another target with all its descendants to map things into. Discriminators can be set anywhere as constants, or not at all.