Eclipse: associate an editor with a content type

Question

Can I change editor associations based on the content type rather than individual file types?

If I go to Window -> Preferences -> General -> Editors ->

Answer 1

The only way I found to do that is by installing a plugin into your install that has the editor-to-content-type binding. In this example, I make Gedit available for the text content type:

See http://help.eclipse.org/helios/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/extension-points/org_eclipse_ui_editors.html for more details.