As a seller, it’s often very important to set Terms of Use for your products. Whether it’s a free-to-use product or a licensed product, you can inform your customers by setting the terms of use within your seller profile.
From your account, just go to: My Profile -> My Vendor Dashboard -> Settings -> Store, then scroll down the page until you see the Terms and Conditions checkfield. Just activate it and you will see a text box showing up that you can fill with your text license.