Once the freight rates are selected, please go to the next tab called Charges:
You can pick the charges from the list, or add new by clicking 'Add new' button. You can edit the values of the local charges by updating the margins:
In the case of LCL and AIR freight quotes, you can add local costs per Weight, Measurement, or per Shipment, and apply the margin on each position:
In case you want to insert a text comment, for example, the cargo insurance policy or temperature and other handling conditions, you can use the comment field at the bottom of this section: