MyEnergi Eddi set operating mode

Configuration
1

I have an Eddi, and have an automation set up to boost the hot water whenever my electricity price (Octopus agile) is cheap enough.

This is working fine (now that I’ve noticed the price is in £ not p :man_facepalming:

However, whenever I boost the Eddi, it returns its operating mode to “Normal” which will heat the hot water when there is excess solar. I’d rather it not do this, and instead export electricity to the grid.
To do this, I need to set the Eddi’s Operating Mode to Stopped.
I can see this on the HA Dashboard:
image
However, I can’t see a way to change this from an automation. (I use Node Red for automations, but not sure that matters)

Is there a way to do this?

Thanks