Multiple EZ430-Chronos simultaneously

Hi everybody,

we are working with the TI EZ430-Chronos watch for activity recognition (with USB-based CC1111 wireless interface to a PC). 

My problem now is that we desperately need to have multiple acceleration sensors running on one and the same laptop. This means that we should be capable of doing either one of the following two options:

(i) 2 EZ430-Chronos with two corresponding USB dongles. Is it possible to operate two dongles on on laptop and to ensure that one watch only connects to one dongle?
(ii) 2 EZ430-Chronos with only ONE USB dongle. Is firmware for the USB-based CC1111 and for the chronos available to distinguish between the sent  data packages (e.g., by mac-adress or static ID)?

Thank you very much for your help!!

Best Regards,
Marc Kurz