How to search a used extension id in eclipse?

I want to search an extension id which is used inside a plug-in. Is there any shortcut for that? Like for searching the plug-ins we have fol开发者_如何转开发lowing shortcut: CTRL+SHIFT+A, so similarly can we search the used extension ids?

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You could try and see if the Eclipse Plugin Spy gives you the identifiers you need:
(Alt+Shift+F1)

Note, as explained here (if you want the id from an RCP application):

To use the the Eclipse Plug-in Spy in your Eclipse RCP application include the plug-in org.eclipse.pde.runtime into your application.