In Blender 2.8, you won’t find any parametric controls for 3D models as a default option. You will have to add those controls using a particular group of tools. To add those controls to 3D objects in Blender, we will use Hooks, Shape Keys, Drivers, and Custom Properties. If you want to learn how to use those tools in projects related to 3D modeling, you will find lots of examples and explanations in the book about them.