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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I did check your last edited form and it seems that you have not added the PayPal payment question but you just have Purchase Order Payment question. That is the reason you do not see any option to add PayPal email address. Please check the screenshot below:
I did check few other last edited forms but could not find any PayPal payment question added. In one form "VESTS", you do have a PayPal Payment question but it is not configured yet. Please check the screenshot below on how to add a PayPal account email in this and then you can add products or accept custom amount:
The following guide should help you add PayPal payment question in your form: https://www.jotform.com/help/50-PayPal-Forms
Hope this helps.
Do get back to us if you have any questions.