This page shall provide a discussion about the EMF Editor and about some improvements:
Please try to reflect the structure of the main page and please explain the current situation on the main page before starting a discussion about:
The code generator produces just 4 classes. That is nice in the first place because you get fast a overview on all but if you take a look into the editor class (the first and the second time) it is almost unmanageable.
There is so many stuff included ....
As you can see extends the generated file directly the MultiPageEditorPart. Therefor it implements (simple) interfaces like ISelectionProvider.