Hi,
I'm building an extension using Extension Builder 3 (HTML5/CSS/JS) and I was wondering if anyone knows how to add settings and other links to this type of extension.
I'm not sure what the correct terminology is for this but the menu I'd like to add items to is the one that displays when clicking the icon on the upper-right corner of tab groups (see screenshot http://cl.ly/Srck). I know it can be done because I’ve seen it in other 3rd party plugins but I haven’t been able to find how.
Is this something I can add by editing the manifest.xml file?
Thanks in advance for your help!