I have made some strides since I posted the above note. I realized that “Products” probably doesn’t show up on purpose, because it’s designed to be listed on another post type. I added it to the Business Listing post type, because on this website, these are going to be events put on by various businesses controlling their own events. I found the interface for adding tickets to an existing Business Listing to be pretty good.
However, as it is a custom post type, and I have my own single-business-listing.php file controlling what outputs on a Business Listing detail page, none of your ticketing stuff shows up right now. What is the snippet of code I need to add to my custom post type template to make the ticket stuff display exactly the same way it would have if I had chosen a standard Page or Post?