Bug 168435 [EditorMgmt] Cannot undo decision to get prompted for save if resource is opened elsewhere
N20061219-0010 (same problem in 3.2 but the given steps won't work) 1. open a text file 2. Window > New Editor 3. do some editing 4. close one editor ==> you get a save dialog with a checkbox. If I check this checkbox I have no choice in the future to undo this decision. This needs to be added to the 'Editors' preference page.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/IDEEditorsPreferencePage.java
GridData data = new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL);
		fileEditorsArea.getControl().setLayoutData(data);
        PreferenceLinkArea contentTypeArea = new PreferenceLinkArea(composite, SWT.NONE,
                "org.eclipse.ui.preferencePages.ContentTypes", IDEWorkbenchMessages.IDEEditorsPreferencePage_WorkbenchPreference_contentTypesRelatedLink,
                (IWorkbenchPreferenceContainer) getContainer(),null);
        
        data = new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL);
        contentTypeArea.getControl().setLayoutData(data);
        
		PreferenceLinkArea appearanceArea = new PreferenceLinkArea(composite, SWT.NONE,
				"org.eclipse.ui.preferencePages.Views", IDEWorkbenchMessages.IDEEditorsPreferencePage_WorkbenchPreference_viewsRelatedLink,
				(IWorkbenchPreferenceContainer) getContainer(),null);
		data = new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL);
		appearanceArea.getControl().setLayoutData(data);
			
		createEditorHistoryGroup(composite);
		createSpace(composite);
		createShowMultipleEditorTabsPref(composite);
		createUseIPersistablePref(composite);
		createEditorReuseGroup(composite);
		((TabBehaviour)Tweaklets.get(TabBehaviour.class)).setPreferenceVisibility(editorReuseGroup, showMultipleEditorTabs);
		applyDialogFont(composite);
		
        super.setHelpContext(parent);
        
		return composite;
	}
	
}