Applying a custom discount

[cleoni]

Hello, I am using VM 2.6.0 for an ecommerce to be launched soon.

I was trying to tweak it so that if I select one of a set of payment methods (typically card+paypal) you get an additional 5$ discount.

I have tried looking for some documentation on methods that can be called or data structures that I can work on inside the php source, but I have found very little or no hints at all.

Can anyone point me in the right direction?

--Chris

[GJC Web Design]

have you tried adding negative numbers in the payment methods Discounts and Fees? (I haven't)
if not hack it into the payment method - it is responsible for the final figure

and if your really using 2.6.0 not only have you missed out on dozens of bug fixes but->
http://virtuemart.net/news/latest-news/462-security-release-of-vm2-6-10-and-vm2-9-9b