Is it possible to name the different switch name for union accessory ?

[xd94402002]

As the topic above, Im struggling how to name it.
I figure out how to union the switch but can't name it seperate.

This is part of my accessory code

homekit_characteristic_t cha_auto_change_on = HOMEKIT_CHARACTERISTIC_(ON, true);
homekit_characteristic_t cha_auto_change_on_name = HOMEKIT_CHARACTERISTIC_(NAME, "Auto change");

homekit_characteristic_t all_swing = HOMEKIT_CHARACTERISTIC_(ON, true);
homekit_characteristic_t all_swing_name = HOMEKIT_CHARACTERISTIC_(NAME, "SWING");

homekit_characteristic_t function_name = HOMEKIT_CHARACTERISTIC_(NAME, "Function");

//=============================

HOMEKIT_ACCESSORY(.id=8, .category=homekit_accessory_category_switch, .services=(homekit_service_t*[]) {
HOMEKIT_SERVICE(ACCESSORY_INFORMATION, .characteristics=(homekit_characteristic_t*[]) {
HOMEKIT_CHARACTERISTIC(IDENTIFY, my_accessory_identify),
&function_name,
NULL
}),
HOMEKIT_SERVICE(SWITCH, .primary=true, .characteristics=(homekit_characteristic_t*[]) {
&cha_auto_change_on,
&cha_auto_change_on_name,
NULL
}),
HOMEKIT_SERVICE(SWITCH, .primary=false, .characteristics=(homekit_characteristic_t*[]) {
&all_swing,
&all_swing_name,
NULL
}),
NULL
}),