3 level nested views combining Tab Navigation & Side Menu Navigation with Ionic Frameworks

I see many examples out there combining the tab navigation & side menu navigation together but they are not nested, or example with nested views on side menu navigation only, in my case, I'd like to implement a tab navigation inside one of the side menu navigation only, however, I've been trying for days but still cannot figure it out, here's my pen: http://codepen.io/auching/pen/vyzJg

  .config(function($stateProvider, $urlRouterProvider) {

  $stateProvider
    .state('eventmenu', {
      url: "/event",
      abstract: true,
      templateUrl: "event-menu.html"
    })
    .state('eventmenu.home', {
      url: "/home",
      views: {
        'menuContent' :{
          templateUrl: "home.html"
        }
      }
    })
    .state('eventmenu.checkin', {
      url: "/check-in",
      views: {
        'menuContent' :{
          templateUrl: "check-in.html",
          controller: "CheckinCtrl"
        }
      }
    })
  .state('eventmenu.checkin.home1', {
      url: "/home1",
      views: {
        'home1-tab' :{
          templateUrl: "home1.html",
        }
      }
    })
  .state('eventmenu.checkin.home2', {
      url: "/home2",
      views: {
        'home2-tab' :{
          templateUrl: "home2.html",
        }
      }
    })
    .state('eventmenu.attendees', {
      url: "/attendees",
      views: {
        'menuContent' :{
          templateUrl: "attendees.html",
          controller: "AttendeesCtrl"
        }
      }
    })

  $urlRouterProvider.otherwise("/event/home");
})

any help would be much appreciated! thx.