Using addons for WT shipping Use this procedure to use addons on the WT Shipping window. Click Addons. The warehouse transfer is shipped automatically. Click the drill down icon for the addon item. Specify this information: Capitalize Optionally, specify an amount. Type Optionally, select Amount, Percent, or For Each Line. Expense Optionally, specify an expense amount. Type Optionally, select Amount, Percent, or For Each Line. Click Accept. You are redirected to the line detail screen wherein you can make changes as needed. To delete an addon, click Cancel Ship Work, and click OK.