Add values to the Metadata tab on the Results Summary

[GadgetGeekUK]

I know that I can add a web panel module to the results summary using:

<web-panel key="myPanel" location="chainresult.summary.right">
           <resource name="view" type="static"><![CDATA[<b>Hello World!</b>]]></resource>
</web-panel>

How do I add values to the table in the 'Metadata' tab of the build results summary?