Automatically import Customs Document data from Quickbooks invoice fields

Is it possible to have ShipRush for UPS automatically import the data for the Customs Documentation from
a QuickBooks invoice. This would include items like description, price, quantity. It might be necessary to go
to the "Item List" database to fetch fields like weight, commodity code, etc. Does ShipRush do this or is it possible
to setup ShipRush to do this?

If this is not possible, does ShipRush remember entries made in the past (like UPS Worldship) so that the entire entry
must not be redone when the same item is exported?

Thanks,
Phil