Only apply discount once per order to limit the number of times the discount will apply

[CD]

Hi all!

I am creating a discount code 20% OFF for Black Friday, but after reading the Shopify Help pages, I cannot find the check box for "https://help.shopify.com/en/manual/discounts/automatic-discounts - number 8, "Only apply discount once per order to limit the number of times the discount will apply. Otherwise, the discount applies to all eligible products in the order."

I need the discount to be applied only once and not for each product in the order, but I cannot find the check box. Is it obsolete?

Hope that makes sense. Thanks!