Kostal Plenticore integration - Setting of shadow management

Hi
I am trying to set “shadow management string1” on/off with an automation.

I found in the documentation:

…Shadow Management RW PV string shadow management…

but I have now idea how to set this in this integration. I can only find the Setting for “Battery Strategy” but not “Shadow Management”.

I have a Plenticore Plus 8.5 (G2).

Is there any other way I could toggle the shadow management through homeassistant,
e.g. via rest API (ip_address/api/v1)?