The following steps relate to features of Business accounts only.

To edit a Buy Now button:

1. Go to All Tools.
2. Click Integrate PayPal.
3. Below "PayPal Buttons", click Open.
4. Select the button you want to edit, and then click Create Button. From here you can create similar, create new or go to "My Saved Buttons".
5. Make your changes to the button, and then click Save Changes. 
6. Click Select Code to select the button code.
7. Copy and paste the button code into your website.