I am testing invoice.zoho and was looking for this feature:

We always have a BASIS price, which is the same for everyone, but we have different customer groups and attached to these clients different pre set discounts.

• Regular one time buyer get 0% discount
• Regular buyer get always 10% discount after first order
• Dealer get 25% Discount
• Distributor get 40% discount.

I want zoho to choose automatically the discount for each client once pre selected.

How would I accomplish that?