Matter device lacks a lot of potential entities

Hi all,

I just finally managed to add two matter over thread devices (Bosch Thermostat 2 M+), using an external OTBR on a raspberry pi with an nrf52840.
The basic fields are there, i.e.:

But the matter addon web UI shows me a lot more endpoints available, e. g. temperature offset calibration. How can I make this and others available to HA as a device entity? There is nothing disabled, as it was sometimes on Z2MQTT devices for example.

KR,

Crumar