title: Woocommerce: Show related products nested
body: <p>I have client who would like to have different related products, the related products will be manually added into woocommerce. </p>
  
  <p>The issue it that the related products is showing randomly, and we would like to be able to show related products nested by the categories - like this: </p>
  
  <p>Related products from catergory 1</p>
  
  <p>Related products from catergory 2</p>
  
  <p>Related products from catergory 3</p>
  
  <p>Is there a way to do this?</p>