The only difference is that here there is an extra tab, concerning Editions.
Product Editions Settings
In the Editions tab, in the Products section you will find the Products included in this Product Group. You are able to drag and drop the Products in order to sort which Product will appear first in Storefront. Next to each Product there is a box where you can add a Short Description for this Product. Once you finish configuring Editions, click on "Save Editions Options".
You can proceed by learning how to create a Comparison Matrix for the Editions of a Product GroupNext