In the left hand side of the images you can see that the ‘Products’ page consists of 2 parts.
Showing a list of all created product groups.
Showing a two column list, with descriptions of each product with its correlating reference.
You can click the ‘+ Add Product Group’ button in the top right corner to create a new group (1).
When named, it will get displayed in the list below for further editing (2).
To edit a product group, press the name of a group on the list (1).
You can now view all products connected to this group (1).
To add additional products to your group press the ‘+ Link products’ in the top right corner (2).
In ‘Link products’ you can select the products you want to link to the group (1), and scroll to the bottom and press the ‘Save’ button (2).