SEMSportal write access

There is a SEMSportal binidng available but according to the binding documentation it only allows for read access.

However the API documentation seems to suggest that the OPENAPI thorugh SEMS also allows for remote control and changing the configuration.
I would like to change the configuration through Openhab but am wondering whether this is possible through the binding or in any other way for Goodwe ET converters.
The document suggesting remote control is possible is here