energylink/public/app/plugins/datasource/opentsdb/partials/annotations.editor.html

<div class="gf-form-group">
  <div class="gf-form">
    <span class="gf-form-label width-13">OpenTSDB metrics query</span>
    <input type="text" class="gf-form-input" ng-model='ctrl.annotation.target' placeholder="events.eventname"></input>
  </div>
  <div class="gf-form">
    <span class="gf-form-label width-13">Show Global Annotations?</span>
    <editor-checkbox text="" model="ctrl.annotation.isGlobal"></editor-checkbox>
  </div>
</div>