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Eclipse Community ForumsFlexible graphic model - video
https://www.eclipse.org/forums/index.php/mv/msg/175908/560387/#msg_560387
http://pluginiac.blogspot.com/2010/04/sketch-flexible-graphi c-model-in-gmf.html)
and a video showing and early demo of Sketch applied to a GMF editor, check it out: http://www.youtube.com/watch?v=TgPYc-Z2mVE