USB-UIRT Forum

I am sure this has been asked and answered before but I am hoping someone can point me in the right direction.

I have two STBs and use Beyond TV.

Can I use one USB-UIRT to control both boxes?
(And if so, how)?

If I need two USB-UIRTs how do I configure each USB-UIRT so that it controls one an only one box?

Thanks,
Vance