title: CKEditor. Open image properties window with a default value
body: <p>I've been looking at the API and I can not figure out how to open the image dialog with a default url. I use the <code>execCommand</code> function, as follows:</p>
  
  <pre><code>var editor = CKEDITOR.instances.editor1;
  editor.execCommand ('image');
  </code></pre>
  
  <p>This works fine, but I want to give some value. I tested with:</p>
  
  <pre><code>editor.execCommand ('image', {
     url: myrURL,
  });
  </code></pre>
  
  <p>It does not work though. Please, I need help.</p>