code: function createEnablerList () {
      var buttons = document.getElementById('buttons');
  
      var enablerContainer = document.createElement('div');
      enablerContainer.id = 'test-enablers-container';
  
      // Create header to show count of enabled/total tests
      var header = document.createElement('h3');
      header.id = 'tests-enabled';
  
      // Create widget to show/hide list
      var expander = document.createElement('span');
      expander.id = 'test-expander';
      expander.innerText = 'Show/hide tests to be run';
      expander.onclick = toggleEnablerVisibility;
  
      // Create list to contain checkboxes for each test
      var enablerList = document.createElement('div');
      enablerList.id = 'test-list';
  
      // Create select/deselect all buttons (in button bar)
      var checkButtonBar = document.createElement('ul');
      checkButtonBar.classList.add('topcoat-button-bar');
  
      function createSelectToggleButton (title, selected) {
          var barItem = document.createElement('li');
          barItem.classList.add('topcoat-button-bar__item');
  
          var link = document.createElement('a');
          link.classList.add('topcoat-button-bar__button');
          link.innerText = title;
          link.href = null;
          link.onclick = function (e) {
              e.preventDefault();
              toggleSelected(enablerList.id, selected);
              return false;
          };
  
          barItem.appendChild(link);
          checkButtonBar.appendChild(barItem);
      }
      createSelectToggleButton('Check all', true);
      createSelectToggleButton('Uncheck all', false);
      enablerList.appendChild(checkButtonBar);
  
      enablerContainer.appendChild(header);
      enablerContainer.appendChild(expander);
      enablerContainer.appendChild(enablerList);
  
      buttons.appendChild(enablerContainer);
  
      return enablerList;
  }
docs: ***************************************************************************