Customers are so picky. They might even be considered obsessively compulsive. Regardless, you have a shop to maintain so you do what the customers ask. You have to put all the ingredients in the order the customers want it. Sometimes, unwanted stuff will be placed on the tray and you will simply click on it to throw it away. Make sure all ingredients are exact or your customers will throw a fit and walk out. You have to click the brake in order to keep the items from moving. Be quick about it and you will reap the benefits. Have fun!