Host Automation in Choir Omnia Essentials doesn't appear in Ableton Live

Hi, I would be grateful if anyone could help with this.

I have just bought Choir Omnia Essentials. When I am using it from Ableton Live 12 I can't see any host automation parameters other than Device On. (Ableton's "Show all parameters" option is on.)

With other Kontakt instruments I can often immediately see the full list of available parameters or wiggling them in the instrument causes them to appear immediately in Ableton. Other than that I can assign a parameter from inside the instrument. In Omnia Essentials if I try to assign anything under Host Automation I can't do anything to get the little plus sign.

I am using full Kontakt 7.

Help much appreciated. Thank you.