title: Want to create custom option in custom post type
body: <p>I am working on product and  recipes wordpress website. Here admin can add different options of a product like, product format availability, Nutrition Information and Where to buy. Here i have attached the following screenshot.
  <a href="https://i.stack.imgur.com/KhUUo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KhUUo.png" alt="enter image description here"></a></p>
  
  <p>Now you can see that admin can add another options in the previous options like Pre-Sliced, Salami chub etc.</p>
  
  <p>How can i get this specific functionality. Via Plugin or custom functionality?
  If Custom functionality then which flow should follow.</p>