My appologies, it appears that my previous reply was not what you were
looking for, but in fact you wanted the technical procedure that Furnino
service techs use to enable the LSB selection.
I don't have that information, but perhaps if you can contact Furnino
yourself, by telephone or email, you can get it.
Assumuing you are in the United States, Furnino is availabe at:
360-834-9300 and email:
Ed