I have added a coupon but I cannot see it when I check out. I looked through the manual and it says to check a show coupon button, but I can't seem to find that anywhere. In my edit product under the coupon section, there is just require and exclude. I don't want to require or exclude, just include it. Am I missing something here?

I wasn't looking in the settings of the whole module. I was looking in the product. Thanks,