Hi All. Please note that in 3.0.5 the plug in now requires Eclipse GEF: so if you update and the plug in don't work, go to http://download.eclipse.org/tools/gef/downloads/ and download GEF, and try again ! We should have the update site updated soon to do this automatically, but if you download, you will need to have GEF if you don't already.
Michael.
