How can I add a paypal button

Paypal payment tools can be found under Payment Tools. Just drag them into the work area to add it in your form.

When you add a Paypal payment field to your form, you don't have to add a Paypal button. It is your submit button that would process the payment. Example, if you are using the Paypal (standard) tool, once you submit your form, it will redirect to Paypal's checkout page.

Hope this information help!