Wishlist Add to Cart for Downloads

Hello,
I am running ZenCart 1.36 with the wishlist contribution. The store sells PDFs but I have found a flaw in the way it handles the download attributes.

Essentially, it calls addcart function with no attribute handling. This seems to allow the purchase to go through but does not supply any download links after final checkout.

So, I know this is unsupported at the current version but I am really close. I know where to add the array of attributes but no tthe format.

It looks like I need to add it in wishlist_cart_actions.php in the 'un_update_wishlist' case.

Any ideas on how to cunstruct the array or the format the array for the addcart function?

Thanks,
Bill