title: Sitecore Multiple nodes for rendering datasource
body: <p>I am using Sitecore 7.2(rev. 140228), I have multiple sites &amp; all of them have their own content store or meta-data. Now I wants to give them choice to select datasource either from own meta-data of other site. Although I know another option to make meta-data global outside of all site but in my case it's not an option.</p>
  
  <p>I have wrote an simple Xpath query:</p>
  
  <pre><code>./ancestor::*[@@templatename="Main section"]/*[@@templatename="SiteFolder"]//*[@@templatename="ContentStore"]
  </code></pre>
  
  <p>Which return me valid result in Sitecore rocks that I wants as below</p>
  
  <p><img src="https://i.stack.imgur.com/BBpbw.png" alt="enter image description here"></p>
  
  <p>But when i updated this in my rendering's <strong>data source</strong> field it returns just first instead of both.</p>
  
  <p><img src="https://i.stack.imgur.com/Q3sV1.png" alt="enter image description here"></p>
  
  <p>Is there any way to show multiple datasource here.</p>
  
  <p>Thanks ,</p>