Overkiz - How to Set native_min_value=1

Configuration
1

I have a water heater manage by Overkiz .
By cosytouch, I can select ‘1’ for expected shower . But in HA, I can’t because minimun is set to 2 :
In core/homeassistant/components/overkiz/number.py I found value

WaterHeater: Expected Number Of Shower (2 - 4)

OverkizNumberDescription(
    key=OverkizState.CORE_EXPECTED_NUMBER_OF_SHOWER,
    name="Expected number of shower",
    icon="mdi:shower-head",
    command=OverkizCommand.SET_EXPECTED_NUMBER_OF_SHOWER,
    native_min_value=2,
    native_max_value=4,
    min_value_state_name=OverkizState.CORE_MINIMAL_SHOWER_MANUAL_MODE,
    max_value_state_name=OverkizState.CORE_MAXIMAL_SHOWER_MANUAL_MODE,
    entity_category=EntityCategory.CONFIG,
),

How is it possible to modify value to set 1 in minimum ?

Thanks