I can't add more than one payment tool

I copied a template that uses the payment wizard to create products, number of products and totals the order before sending by email. Having gone through the wizard numerous times, I cannot find the ability to add a payment gateway.

I have a merchant (Worldpay) and would like to add the option to add online payments to the form.

Do I have to start from the Payment tools again? or is there another way to add links to the Merchant gateway?

http://www.jotformeu.com/nigew/OrderOnline

Unfortunately, only one payment is allowed however you can add another payment by making a separate form then embed those form to your main form, now use a conditional rule to hide and show those payment option base on the user input.

Please check this guide on how to add multiple payment http://www.jotform.com/help/182-How-to-Create-a-Basic-Multiple-Payment-form.