Spotify Apps Api - Tabs

index.html

<script type="text/javascript">
function init() {
   console.log("init()");
   sp = getSpotifyApi(1);
   // detects arguments value for tab  
   sp.core.addEventListener("argumentsChanged", function (event) {	
      console.log('args changed', sp.core.getArguments());			
   });
}
</script>

manifest.json

{
    "DefaultTabs": [
        {
            "arguments": "tab1",
            "title": {
                "en": "title tab 1"
            }
        },
        {
            "arguments": "tab2",
            "title": {
                "en": "title tab 2"
            }
        }
    ]
}

Is there any way to do a drop down sub-menu for a certain tab?

I don't think that is an option. We Are Hunted uses a drop down menu but they actually aren't using the Spotify bar. They redid the bar themselves and you can actually pull it from them if you inspect their app.

Thanks man. :)