The best way to do this is to go to the mother ship and take the decklists off there and upload the list into your inventory.
For example with the 2013 commander decks. Go to this link:
http://www.wizards.com/magic/magazine/article.aspx?x=mtg/daily/feature/269c
click the magic online Icon in the top right of each decklist.
This will download a notepad file that you can open, copy the decklist, and paste it into the upload list box in your deckbox inventory.