One other thing, like @humbertogarcia stated below, this will only work
if you have your G terminal is connected to a separate fan wire in your
forced air system.
You can schedule the fan to run in the "Schedules" section of the
thermostat in the Home app. When you enter the "Schedules" section,
there should be a tab button labeled "Fan". Select that and you should
be able to schedule the fan to run.