Using v 1.5.7b with PayPal Express installed.

Does anybody know if there's a way to show the Pay Later button in the payment options with Express? There's info on their site ( https: //developer . paypal . com/docs/business/checkout/pay-later-messaging/integrate/ )

If anybody knows where the js is for paypal it's as simple as adding this code to it: <script src="https://www.paypal.com/sdk/js?client-id=PUT_YOUR_CLIENT_ID&components=messages"></script>

I can't find it but they say it can be used with anything. It would add good value to the cart if I figure it out.