Products may be assigned to an insurance group. They do not have to be assigned, indeed you can use this extension and not have any insurance groups.
Before assigning a product to an insurance group you must first create the groups themselves and set the appropriate rates and limits.
To manage insurance groups navigate to Catalog->Manage Insurance Groups
From here you can add, edit, or delete insurance groups. Please be aware that if you delete insurance groups you have an adverse effect on any products that are associated with them – so make sure you know what you are doing!
When you add an insurance group there are a number of fields you can fill in.
Title is the name of the Insurance Group – this is how it will be known in the Product Area
Note that it is possible to apply both a flat charge and a percentage charge.
Once you have some insurance groups then go into each Product listing within Admin. Within the shipping tab you can assign the insurance group to the Product. If you wish the product to use the default insurance costs then leave blank. If you wish to have no insurance applied then you need to create an insurance group with zero values in flat and percentage charges, and then assign this to the product (or set the default to zero as desired).
Settings for enabling / disabling the shipping insurance calculation are held under
Under the Shipping Insurance section the following fields are configurable