v1.3.4 mobile angular ui - how to add sub menu in the sidebar

[jonasli]

hi,

I'm a quite new guy to the hybrid mobile development. I'm following the steps in the tutorial document http://mobileangularui.com/blog/using-the-generator/
and it work fine.

I just have a question is how I can add sub-menu under list-group-item, where can I find the descriptions for these tags like "list-group-item"? do we have the list-group-sub-item ?

 <div class="list-group" ui-turn-off='uiSidebarLeft'>
        <a class="list-group-item" href="#/link1">Link 1 
          <i class="fa fa-chevron-right pull-right"></i></a>
        <a class="list-group-item" href="#/link2">Link 2
          <i class="fa fa-chevron-right pull-right"></i></a>
      </div>

Thank you for your support.