Need help adding payment method.

Need help adding payment method. After selecting: Add Form Element-Payment, I'm not able to click on "authorize.net"...its not highlighted.

Please help. Thanks

We are set up to use authorize net.

If other payment lists are gray, you already have a payment field in your form. Please note that you can only add one payment each form so you need to remove that if you'll add another.

Click on the payment field and remove it.