title: assign customer to multiple customer groups to magento
body: <p>Hello I want to assign multiple groups to particular customer like "Rajat the customer" belogs to "Wholesale,retailer,electric". actually I saw the same thread on <a href="https://stackoverflow.com/questions/6153011/multiple-customer-groups-per-customer-magento">Multiple customer groups per customer</a> but it is not helpful does there any update to make this change happen.</p>
  
  <p>I am stuck what should I do because there aren't any extension available with the same functionality?</p>