If you are familiar with the interface, you have to enter in the Catalog Menu and you have to select the Attributes submenu. From there you will have two choices, Attributes and Attributes Group. First, select on the second one, Attributes Group. There you will need to create a new group of attributes. This way you will be able to keep them more organized and you will not create a total mess on your website. Click on Insert and then choose the order. As soon as you have a group, you can go back to the Attributes and create a new attribute. You enter the name and after that make sure that you choose the proper group for it. Choose the desired order for your attributes and you have finished your job. Is not hard, but it is very important to have the attributes as accurate as possible. These ways clients will find everything they need in an easy way, and the user experience will be a great one.