See Vessel menu.
You can use the following settings to configure the unit and barge visit related information that N4 can automatically fill in when you use the Barge Stow Plan form.
INVBRGE001 (BARGE_POPULATE_GROSS_WEIGHT_FROM_BKG_ITEM) 1
INVBRGE002 (BARGE_POPULATE_ISO_FROM_BKG_ITEM) 1