If you want to insert a buy button for an existing product; already listed, simply select the product by checking the box to the left of the product name, in the list, then click the button.
Clicking the button above will insert your PayPal Buy now button at the cursor point in the Web page designer window. The button will be represented in your page design by a ‘placeholder’ box. Right-clicking this box, and selecting “PayPal properties” at a later time, will load the settings for the PayPal button in question, allowing you to choose a different product should you prefer.
In the following section we’ll look at how we add new products.