Although headway offers a footer block that has a copyright on it, sometimes you might want to add more things such as attribution link to your design, a custom menu after copyright or other things that you might want to accomplish to have a custom copyright in your headway site.
There are a couple of ways on how you can customize your footer copyright, but the best way I know is to have a little code snippet in your functions.php file. This way, you won’t have to redo things over and over every time you created a site, although it might not save you a tons of time, but still worth some minutes of your time to spare. So without further ado, here is the code. Just paste it in your functions.php file.
That is it, just change the order or contents and your good to go. Just beware that you are working on php file, you might break the site if you your being careless in editing it.