Example; Customer "x" is listed as in pricing rules as Tier 1 with a 20% upcharge. $10 per unit x 20% = $12.00 per unit. Let's say their current vendor is selling for $11.00. I need to enable the salesman to adjust that single product down $1. Depending on situation, possibly forever or for a limited time.

Do I have to create a new price rule each time or is there away to quickly enter the price adjustment? I would like to allow the salesmen to create this on the fly, per product, and not create a new pricing rule each time, as I don't want to enable them to have access to overall pricing rules.