Product Listings Only Option in Version 3.0.0.2

Hi, I updated versions on my test site to see what the changes are since 2.9.4.2 and it's a complete overhaul. Everything has changed. I don't even see the option for "product listings only" anymore. I have my products going to a checkout on another site. 2.9.4.2 is the last version that worked for me without messing with my product titles and categories. I'd love to get the new features. But with the complete change, it looks like I would lose everything I've done.. not even my buy now buttons were showing because there's not external link area.