S2Member Stripe Pro Form Setup Fee + Recurring Payments

Does anyone know how to setup a one time setup fee and then recurring monthly payments?

For instance, I’d like to charge $20 setup fee and $20 monthly recurring. So when they first sign up, they will pay $20 + $20. After that, it will be recurring $20 per month.

Any ideas?
Thank you.

Just set the form to charge $40 for the first month and then $20 for each subsequent month.

I noticed that doing this on Stripe lets the system give access even if the trial payment fails on Stripe, so I stopped using it, or I had to keep checking.

It’s ok for PayPal though.