Write registers in sma solar integration


I have a question to ask, if someone can help me about SMA solar integrations:

in my photovoltaic plant I have an SB5.0 + SI4.4 + Home manager 2.0:

  • With the current integrations we can only read values from the inverters and I would like to access some records of the SI4.4 to be able to indicate when to charge / discharge the battery based on the PVPC of € / kwh.
    Can you tell me how can I do it?
    or do you have any integration ready?

thank you