Are we able have a product description area under the product listing, and with bullet points?

2.Are we able have a product description area under the product listing, and with bullet points?

You can customize your product and just pass it to a total then pass the total to your PayPal widget. For each product options, you'll need to assign a value and pass that value to total field the total field to PayPal field.

Here's what you need.

1). Set the payment field as a "User defined amount" as we will be passing the total calculated amount into that field.

2). Create an individual field to meet your needs. ex. if you need a product description under product listing and have them displayed in bullet points.

3). Assign a calculation value to each option https://www.jotform.com/help/301-How-to-Assign-Calculation-Value 

4). Pass that value to a form calculation widget https://widgets.jotform.com/widget/calculation

5). Pass the total value in the form calculation widget into your payment field by assigning the field to get the value from the form calculation widget https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field.

I hope that gives you an idea, but let us know if you have any questions or if you need further assistance.