[news.eclipse.tools.emf] Get selected EObjects from EcoreDiagramEditor

[Philip Langer <langer@xxxxxxxxxxxxxxxx>]

I'm not sure if I'm posting this to the right group. If not, please 
excuse me.

I've got two questions about EMF/GMF Editors, especially 
EcoreDiagramEditors and EcoreEditors:

First, I would like to get the EObjects which are currently selected in 
an active EcoreDiagramEditor. Is there a way of doing this?

Second, how can I set an EcoreEditor (tree editor) to dirty (leadings to 
the asterics in the tab) after changing its contents from outside 
programmatically. I retrieved the selected EObjects using 
ISelectionProvider.getSelection and changed the objects. The changes are 
displayed in the editor immediately. But how can I set the editor to 
dirty 
from outside to force a "want to save"-question when closing.

Thank you very much in advance,

Philip Langer