Using addons for OE shipping Use this procedure to use addons on the OE Shipping window. Click Addons. Click the drill down icon for the addon item. Specify this information: Addon # Select an addon item. Type Optionally, select Amount or Percent. Amount If you selected Percent for the Type, specify a percentage. If you selected Amount for the Type, specify an amount. Click Save. To delete an addon, select the item, click Delete, and click OK.