openproject/frontend/public/templates/work_packages/tabs/watchers.html

  <div id="detail-panel-watchers">
    <ul ng-if="watchers.length">
      <li ng-repeat="watcher in watchers">
        <user-field focus="$index == focusElementIndex" user="watcher"></user-field>
        <accessible-by-keyboard execute="deleteWatcher(watcher)" ng-if="watcher.links.removeWatcher"
          link-class="detail-panel-watchers-delete-watcher-link">
          <icon-wrapper icon-name="close"
                        icon-title="{{I18n.t('js.button_delete_watcher')}}"
                        class="detail-panel-watchers-delete-watcher-icon"></icon-wrapper>
        </accessible-by-keyboard>
      </li>
    </ul>

    <div id="detail-panel-watchers-add-watcher" ng-if="workPackage.link('addWatcher') && availableWatchers.length">
      <h3 ng-bind="I18n.t('js.button_add_watcher')"/>
      <fieldset>
        <legend ng-bind="I18n.t('js.button_add_watcher')" class="hidden-for-sighted"/>
        <input type="hidden"
               ng-model="watcher.selected"
               data-placeholder="{{ I18n.t('js.label_select_watcher') }}"
               simple-query="getAvailableWatchers"
               ui-select2-sortable
               focus="focusElementIndex < 0">
        </input>
      </fieldset>
    </div>

  </div>