Step back button for Commerece offsite payment method I'm writing an offsite payment method for Drupal Commerce (I need that to interact with my bank API). The thing is that when I create a form to send to payment server via PAYMENT_redirect_form I have the only button - SUBMIT there. I want to add one more button there - smth like GO A STEP BACK to return to checkout state. So, i've created one more button, but it performs the same action as SUBMIT - goes to payment server... I think i'm missing smth very simple, but how can i make that one more button in payment submition form to perform a step back like those we have in checkout proccess?

Will be very thankful for your advice :)
It's likely you can't, because the form's action will be on a PayPal domain. So it'll always be submitted to them, and your site will never know about it.

The simplest solution would be to use a styled link instead of an input.