grafana/src/app/partials/panelgeneral.html

<div class="editor-row">
  <div class="section">
    <h5>General options</h5>
    <div class="editor-option">
      <label class="small">Title</label><input type="text" class="input-medium" ng-model='panel.title'></input>
    </div>
    <div class="editor-option" ng-hide="panel.sizeable == false">
      <label class="small">Span</label> <select class="input-mini" ng-model="panel.span" ng-options="f for f in [0,1,2,3,4,5,6,7,8,9,10,11,12]"></select>
    </div>
  </div>
</div>