Open Cart Job by joforster

Hi I have some custom coding to do to a new opencart site I'm working on. Basically I've installed an extension which allows me to have different discounts for the manufacturers products I sell. I sell products from 6 different manufacturers and each has a different level of discount. I can do this no problem. These appear as customer groups in an individual customers record and I can only assign one customer to one customer group. I'd like to be able to assign customers to multiple groups and that is where the customer coding comes in. I can explain in more detail if your interested we can discuss price