unable to add menu

"mcheung63" <[email protected]> Sun, 22 May 2016 18:01:52 +0000
Newsgroups gmane.comp.java.netbeans.devel
Message-ID <[email protected]>
Hi all
   In the "Files" window, i want to add a menu when right click any .o file. But i don't know what value i should put in the @ActionReference. I have used http://plugins.netbeans.org/plugin/44971/nb-lookupinspector to find the value but no luck

   Please help?
thanks
from Peter ([email protected])