Ah yes the option settings.
sound 1 store for option 1.
Used if its in one room and not linked.
Sound 2 store for option 2.
Used if its in a another room and linked.
Sound 0 store for option 0.
Used when linked to a Beovision and both are in the same room. Makes the remote sensor inactive!
The option settings are for a Beolink 1000.