Ecore is the metamodel used by EMF to define other metamodels. The Ecore graphical editor is a part of the TOPCASED-MF (for Modeling Framework) subproject.
If you are interested in developing and contributing enhancements or new capabilities for the Ecore editor, please go to the developers area , you will find all necessary informations. Any contribution is welcome !
If you find a bug , or if you are thinking to an improvement of the toolset, please fill a bug/feature request report.
For more information: http://topcased-mm.gforge.enseeiht.fr/website/modeling/ecore/index.html
Recommend the tutorial