Customer Exclusive packaging

Right now customer "exclusive" packaging is listed with all other packaging options on the list of available packaging when shipping an order. This makes it hard for a warehouse to offer this option to too many clients as the list of packaging will grow and grow, inturn it will take a shipper longer to locate the box they want to use. A better way would be if the "Exclusive" packaging for the client only showed when you were shipping an order for that account. It will keep the list of boxes & Bags that are available at time of shipping to a minimum. It also just makes sence that if a customer sends in a branded box it probably should not be selectable for a different account.