title: Magento: Building a store URL in CMS-syntax, using a variable
body: <p>I am building an e-mail template. I want to build a URL like this:</p>
  
  <pre><code>http://store.com/path/to/page?shipmentid=123
  </code></pre>
  
  <p>This code builds the correct URL:</p>
  
  <pre><code>{{store url='path/to/page' _query_shipmentid=123}}
  </code></pre>
  
  <p>But the <code>123</code> part should be dynamic. I need it to pull from this variable:</p>
  
  <pre><code>{{var shipment.id}}
  </code></pre>
  
  <p>Is this even possible? I'm looking for something like this:</p>
  
  <pre><code>{{store url='path/to/page' _query_shipmentid=shipment.id}}
  </code></pre>