Of Couse, all the cheats from the original Baldur's Gate work too
with the expansion.
File Editing
Open the file Baldur.ini in your Baldur's Gate directory and add the
line Cheats=1 under the [Game Options] entry. Then save the file and
run the game.
Once in the game, press [Ctrl][Tab] to bring up the console in which
you type the cheats.
Type in the cheats exactly as they appear below and hit [Enter] to
activate. Close console with [Ctrl][Tab] again.
After editing the Baldur.ini file in the Bgate directory, (as was
done for the other cheats), you can use the following codes:
CLUAConsole:CreateItem("xxx") where xxx is the code for an item. For
an entire list of all items download the Baldur's Gate Item List file.
This is the list of all the new items from the expansion: