What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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.
Unfortunately, this is currently not possible within JotForm.
You will need to add a custom program code to implement the logic on your form. What you can do is to download the full source code of the form and modify it as needed to implement the logic you want.
Another options will be to create a PHP code that will retrieve the data from the link you have provided and then pre-populate the form using URL parameter.
You can check this thread also which has a similar discussion on the requirement.
Do let us know if you need further assistance.