Hello, I would like to be able to have a global price list in Books (e.g. marked up 100%) and then offer different customers, different discounts, e.g.

Customer 1 might get 25% on product one and 20% on product 2

etc, etc.

We would set up discounts for each customer by product. My rationale is that is we have price increase we only then need to increase one price list not a seperate list for each customer. 

I want to be able to create invoices for a particular customer and the discounts automatically apply.