I know I've run across this before, because I set it up, but now I can't find it anywhere.
On a product, if you use a listbox for the quantity to add to a card, somewhere there is a parameter that limits the number that can be added each time.
Can someone please refresh my memory where that is set? I can't find it in the manual either.
Thanks.

Try this...
 
in this file... "includes/shopping_cart.php"...
find this function... "set_quantity_control"...
and change this parameter... "$max_quantity = 10;"

Thanks Bagger. That did it. Wish it was a system or product type parameter rather than a file edit like this.