This feature allows you to add more than one Custom attributes groups to one product. This way, products will display more groups of custom fields in the products list and product details.
Enable Group Attributes feature
To enable grouping of extra fields (attributes):
1. Go to Components -> DJ-Catalog2 -> Options -> Product page tab
2. scroll down and find Group attributes part and set it to "Yes"
3. Save options
How to add a group of attributes to the product
Go to Components -> DJ-Catalog2 -> Products and open the product you want to edit
Click the Product Attributes tab, and there you'll find the Field group setting where you can add more attribute groups to the product.
When you're adding new Field (attributes) groups, the group's extra fields are being displayed below. Here you can modify the extra fields.
When you save the product after filling the extra fields, the new grouped attributes are being displayed on the products list:
and in product details:
As you can see there are 3 different field groups displayed.