ISY994 - Multiple sites

I just finished setting up HA on a Raspberry Pi 3B.
hass --version: 0.43.2
python3 --version: Python 3.4.2

Question:
Is it possible to configure HA so that the ISY994 can access multiple sites? I tried creating an isy994.yaml file with 2 entries but did not work. The setup works well with only one entry.

Thanks
Renato