How do I set a permanent hold temperature on the T6 Pro?

Adjust the temperature setting on the thermostat display and a 'HOLD UNTIL' message will appear showing the time of the next schedule change. Touch the 'HOLD UNTIL' message to reveal two options: 'PERMANENT HOLD' and 'RUN SCHEDULE.' Select 'PERMANENT HOLD' to maintain that temperature indefinitely until you manually change or cancel it.