Lock Addresses in Sales Order to only Shipping Addresses

Currently when placing a sales order, the shipping address shows every address for a client, regardless of whether it's a business, billing or shipping address. This is really useful for those companies who just put a single address against their client, and it's used for all cases (billing, shipping etc.) however when we have national accounts with stores for shipping, plus offices for billing it gets very confusing. An option or similar in the General Settings of whether to limit addresses to shipping type would be great (similar to the option which exists to limit products on a PO to the nominated supplier)