Hi,
There is no options for that. If you want a button in a product listing page so you can directly edit the view "product / listing" and add some code to display the "Proceed to checkout" button.
Something like:
$cartClass = hikashop_get('class.cart');
$cart = $cartClass->loadFullCart();
if($cart != null && !empty($cart->products)){
$cartHelper=hikashop_get('helper.cart');
$itemid_for_checkout = (int)$this->config->get('checkout_itemid','0');
if(empty($itemid_for_checkout)){
$menuClass = hikashop_get('class.menus');
$itemid_for_checkout = $menuClass->getCheckoutMenuIdForURL();
}
if(!empty($itemid_for_checkout)){
$url_checkout = hikashop_completeLink('checkout&Itemid='.$itemid_for_checkout);
}else{
$url_checkout = hikashop_completeLink('checkout'.$url_itemid);
}
echo $cartHelper->displayButton(JText::_('PROCEED_TO_CHECKOUT'),'checkout',$this->params,$url_checkout,'');
}