How to change the preselected payment gateway - Zoho Froms

How to change the preselected payment gateway - Zoho Froms

Hello all,

I have Stripe and PayPal as payment gateways and PayPal appears as the preselected payment gateway automatically, while I want Stripe to be the preselected gateway. I have no idea how to achieve this. Any help would be warmly welcomed. Thank you very much.

Best, 
Christian