title: How to get not filled pageProperties
body: <p>I get the Page properties as follow: </p>
  
  <pre><code> PageManager pageManager = resourceResolver.adaptTo(PageManager.class);
   ValueMap pageProperties = pageManager.getPage(currentPagePath).getProperties();
  </code></pre>
  
  <p>Now these are only the page properties, which are filled in the page properties dialog. How to get all properties, which can be found in the page properties Dialog of some page? </p>