In this article, you will get to know how you can enable advance form base for any product.
Login to Backend
Navigate to Catalog -> Products.
You will land on the Products page where a list of all the added products is displayed. Now, to enable advance form base, you have to click on the Edit button on the Action column.
Here, in the Edit page you have to scroll down to the Product Designer where you can view the Form Based on Product Detail Page section. Set the toggle button to Yes in order to enable Advance Form base.
This is how it will display on the front end.