The STB controllers are loaded with tables in one of two ways depending if you have a recent Beovisions/Beosystems (Beovision 9 & Beosystem 3) or an older type of Beovision (AVANT's Beovision 3 etc)
The older STB controllers are updated by changing a plugin chip on the STB controller board in the TV.
The more recent Beovisions can have the IR codes generated by the dealer using a software package and then downloaded. Clearly the dealers software has all the B&O support boxes in the software, but if it is not supported the only thing the dealer can do is request your box be added.
Capturing the codes to be loaded is not an option.