Bukkit

Example: I'm selling a load of cobblestone, but then I go mining and I have more cobblestone to sell, so I create a new sell order, but then I have two sell orders, the same item for the same price, so why not combine them and have less orders kicking about?

Would also be nice to be able to change the amount and the price-of-each of an order, instead of having to cancel it and start again. Is that workable?