Hide free items from cart and invoice?

i got a couple options on some items. Even if the option has no price it gets added to the cart.. i would like to hide any options with no cost that end up in the cart. How can i achieve this with the hikashop?

You can edit the file cart of the views product and checkout and the file show and invoice of the view order via the menu Display->Views. There, in the for or foreach which displays the products, you can add a check to skip the free products.
Something like that (the variable name might be different in some cases):
if(empty($row->prices)) continue;

i am having trouble locating the line to insert the code you gave me.. Could elaborate a bit more?


Thanks,

Foreach for the cart file of the view checkout, it's after the line:
foreach($this->rows as $i => $row){
That file is for the cart display on the checkout.