Eurotronic Spirit ZigBee - valve position %

Hi All,
this is my first post here.

I have one Eurotronic Spirit ZigBee valve - bought it just for testing.
The documentation says that there is a possibility to get / set the valve position %

But the device is not returning such value:

info 2020-09-26 21:48:44: MQTT publish: topic ‘zigbee2mqtt/###’, payload ‘{“local_temperature”:22,“occupied_heating_setpoint”:5,“unoccupied_heating_setpoint”:16,“pi_heating_demand”:0,“linkquality”:44,“current_heating_setpoint”:5,“eurotronic_error_status”:0,“battery”:100,“eurotronic_host_flags”:{“mirror_display”:false,“boost”:false,“window_open”:true,“child_protection”:true},“system_mode”:“off”,“eurotronic_system_mode”:145,“battery_low”:false}’

Is there a possibility to get / set it?

Kind regards,
Volt