BoxT can be used easily by sellers using listing tools other than ScanPower.
To import shipments into BoxT log on at https://boxt.scanpower.com/ or by clicking BoxT from the ScanPower toolbar.
In the next window BoxT will attempt to pull in any shipments it can locate. These shipments will be listed in the lower half of the window. You can pick and choose which of those shipments you want to import and then click IMPORT SELECTED. If a shipment is not appearing there which you want to import you can search for the shipment, by ShipmentID, in the search field toward the top of the window and click IMPORT.