From the My Account page, choose Dress Codes from the left menu underneath Teacher Tools. Once on the My Dress Codes page, there will be a button on the top right of the page that says Create a New List. A pop-up window will appear prompting you to name your new list and add an optional note or comment. Once the Dress Code is created, you can now simply browse through the categories on the website and click the green '+' (plus) signs on the bottom left of the images. A pop-up window will appear that allows you to add to the list you've just created, or start a new list.