Hi John,
It sounds like you've watched one of the demos of the next generation CADWorx Plant software, which is still in development; it has gone through a number of name changes over the past few years. The current release version of CADWorx, 2012, still uses the same basic structure from the past 6-7 years (albeit with some nice new palettes and additions)
The new version of CADWorx is looking very promising at this point, but has not yet been released for general consumption.
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Vince Wehnes, C.E.T.