Elpost Shiplab for Magento / Additions
You can add:
Shipper Accounts - This data can be got in your carrier account
Addresses - You can select the added address in the configuration for each store, direction or delivery country as shipper or "ship from" address
Boxes - Boxes need for calculated packages dimensions
Third-Parties - Billing of shipping costs to a third-party that is not the consignor (shipper) or consignee (receiver).
Configuration Scopes - It's the best choice for setting your shipments. For each store, direction, and country you can set up individual parameters