Allow freight+insurance total costs to show on custom packing slip

Hi there,

We are advanced user with 3+ years ShipStaiton experience. In our operation, we pass the shipping and insurance costs to customer after label was generated. We apply insurance for higher value packages. However, insurance amount not add up onto freight costs at packing slip. Have reviewed these options at Packing Slip Field Replacements
There is no variable for freight plus insurance costs. Would prefer total amount as field replacement option. That is going to make our life much easier.