A window will appear for your account settings, click on the Pricing Table tab, as shown below.
Switch the Enable Additions toggle switch to the "on" state (the switch should be green), as shown below.
Now click on the Save button to commit your accounts settings change.
Using the "Additional Fee" Feature
Create (or edit) a sales quote.
Navigate to the Pricing section of your sales quote.
You will see an extra column in your price table with the column heading label "Additions" (as shown below).
Enter a value into the Additions data item, for a price row. In our example, the price line is for "Website hosting" and we have added a $24.95 set-up fee in the Additions column.
Now let's view the sales quote, click the Save and Preview button.