How do I add square to an existing form? It is only giving me the option for paypal

When I link my square account it is only coming up with a new order form, I cant add it to a form ive already created.

If you have already added the PayPal payment field on the form, it is not possible to add any other field. You'll be required to remove the existing payment field on the form so that you can add another payment field. Please be noted that if there are any submissions received with the existing payment field, the payment field information will be lost when you delete the payment field on the form.

Hope this information helps!