Sensors OpenTherm gateway

Question about the sensor settings of the OpenTherm Gateway with firmware 1.5.5

In the settings for indoor temperature, the type/source option “OpenTherm, indoor temp” is missing, unlike the sensor for “outdoor temp.”
Because I use a Zigbee thermometer for indoor temperature, I now select the option “Manual via MQTT/API” for indoor temperature.
In Home Assistant, I use the automation opentherm_interntemp to link the value of the indoor thermometer to the “indoor temp” field.

My question is whether this is the correct way to do it. In the thermostat card in Home Assistant, the current temperature is not showing the “indoor temp,” but the “heating temp.” I have no idea how to change this.

Another question is: what happened to the “target temperature”? I upgraded directly from version 1.4 to 1.5.5 and now I seem to have lost the ability to set the target temperature.