title: AngularJS Dropdown Multiselect adding custom button
body: <p>I am currently stuck in a situation where I have to add a button to drop down options but can't find  any help to add custom button to drop down options using this library</p>
  
  <p><strong>main.js</strong></p>
  
  <pre><code>$scope.example14model = [];
  $scope.example14settings = {
      scrollableHeight: '200px',
      scrollable: true,
      enableSearch: true
  };
  $scope.example14data = [{
      "label": "Alabama",
          "id": "AL"
  }, {
      "label": "Alaska",
          "id": "AK"
  }
  ];
  </code></pre>
  
  <p><strong>main.html</strong></p>
  
  <pre><code>&lt;div ng-dropdown-multiselect="" 
      options="example14data" 
      selected-model="example14model" 
      checkboxes="true" 
      extra-settings="example14settings"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>How can I add button to my drop down options? Any help will be highly appreciated.  </p>