The custom copy builder can be found inside of the AdCopy extension once you are logged in. Click the highlighted button (pictured below) to access at any time.
Next, you have full freedom to fill out all of the fields giving AdCopy as much information possible to craft you the best copy possible.
Keep in mind: More precise inputs will enable us to create higher quality outputs for your copy. If you are unsatisfied with your output, simply hit the "Edit Results" button on the output page or "Regenerate" to try again.