Zend Framework - DisplayGroup inside DisplayGroup

Is this possible to do with display groups in Zend Framework? other ideas on how to do this?

<form>
  <开发者_如何学Pythonfieldset>
    <legend>DisplayGroupOuter</legend>
    <label for="outer">Outer</label> 
    <input type="text" name="outer" id="outer"/>
    <fieldset>
      <legend>DisplayGroupInner</legend>
      <label for="inner">Inner</label> 
      <input type="text" name="inner" id="Inner"/>
    </fieldset>
  </fieldset>
</form>

Have you considered using Zend view scripts? This allows you more control over the layout of your html form, and should allow you to embed your fieldsets as you like.