Hi,
I'd like to know if, at checkout, there's a way to set the checkbox "use the same address as for billing" to off by default, so that the billing address and the shipping address are different by default.
You can go int he menu Display->Views and edit the file address of the view checkout. There, remove the code below you have the checkbox off:
if($this->shipping_address==$this->billing_address){
$checked = 'checked="checked" ';
$style = ' style="display:none"';
}