Xiaomi MIIO integration - batch adding and local polling interval questions

Hi All, I’ve just added a couple of WIFI switches to Homeassistant via the MIIO integration and they’re working great. I have a couple of questions though.

  1. According to the MIIO page it uses local poling. Does anyone know what the polling interval is and if it’s possible to change?
  2. From what I can tell, you can only add one device at a time and each time you do so, you need to provide your credentials. Is there a way to add multiple devices at once?