S2member Bank transfer option

Hello,

I would like to add an additional payment option for my purchase form. Beside the PayPal option, I would also like to have simple “Bank transfer” checkbox. When hitting the “Buy” button at the end, I would manually send an invoice (PDF) to the buyer. Do you have a tip how to add this payment option?

Also, I have an additional question. Where can I set a specific custom link to a page, that would appear after a successful PayPal payment? Currently, the default green page opens.

Thank you very much for your help!