I would like to add a select list to the delivery details form at the bottom of the checkout. Adding a form in the template isn't difficult, it's just html... but getting it to retain selected values across page refreshes is less than obvious.
If php were possible within the template itself it would be straightforward, but creation of these sticky form elements between block and template seems to me at least to be abstracted to the point of obscurity.
How do I add this simple element and have it 'sticky'.
The block file is: block_order_info.php and the template is of the sasme name but '.html'. I've tried following the same method to 'add_select' as employed by delivery_state, but to no avail.
