Good find. Also, if you plan to use the cabin heater remotely to thaw out the cabin, If your heater is on "Manual" when turning off the car in the evening, it's a good idea (during freezing weather) to make sure the A/C is "off" and the fan is on a high enough setting to thaw out the cabin in the morning. Sometimes I use A/C to defog window glass in humid weather and forget to turn it off. This greatly reduces the speed of defrosting the entire cabin.
When the temperature is low (below freezing ?) and you remotely turn on cabin heat. The “red” defrost is active (heat on windshield with blower high). No need to fiddle with HVAC every time you leave and enter the car. As soon as you enter the car it reverts to previous settings.