title: Change heroku region after creation
body: <p>Thought this could work, but it doesn't:</p>
  
  <pre><code> heroku appname --region=eu
  </code></pre>
  
  <p>This works, but I already have an existing app, so this does not make sense for me:</p>
  
  <pre><code>heroku create --region eu
  </code></pre>
  
  <p>Or for an addon:</p>
  
  <pre><code>heroku addons:list --region=eu
  </code></pre>