After viewing the details of the particular product group, if you wish to edit the details of the group then simply click on the edit icon, located at the left hand side of the group you have selected.
When you click on the given icon, a page appears that facilitate you to edit the details of the product group.
After editing all the details, click on “Save” button to update the details of the product group, else click on “Cancel” button to exit from the page.