title: Split order in two if specific product is in cart
body: <p>I need to split order into two orders if customer tries to buy one normal product and one magazine subscription. Is that possible to achieve in Prestashop admin panel or do I have to override some controllers/classes?</p>
  
  <p>I cannot use multiple warehouses to handle the situation as I have external stock management and don't want to mess things up.</p>
  
  <p>I'm using Prestashop 1.7.1.2.</p>