How to conditionally add extra amount in payment tool?

So on this form: https://form.jotform.ca/21526232971249  You will see under the t-shirt size drop down, it says "XXXL for an extra $5".  On this form we already have a paid element (registration fee).  How can I link the xxxl choice to an extra payment?  

Thanks for the help,

James

Hello James,

Unfortunately it is currently not possible to dynamically / conditionally add amount to payment tool but it is possible to achieve your requirement but using regular form fields to list your product and "Form Calculation" widget to calculate the price. You can then pass the calculated amount to your form's payment tool. The following guide should help you:  https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field

Please take a look at the following cloned form and see if this works as expected:  https://form.jotformpro.com/71454906135961 

Feel free to clone this form for a closer look. The following guide should help you in form cloning:  https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL

Hope this helps.

Do get back to us if you have any questions.

Thank you!

Awesome it worked!!  Thank you!!!