Is this a plugin?

[StoreOwner]

Hi StoreOwner,

Regarding the layout/add to cart method for your Product Listing pages, take a look at the settings within Configuration > Product Listing, particularly:

Display Product Add to Cart Button (0=off; 1=on; 2=on with Qty Box per Product)
Display Product Description

Regarding the tabs on your friends Product Info pages, this will be a plugin or custom code to add the tabs.

1 and 2 both look the same exact to me
0 turns them off so you have to click on the product :/