how do I program a Kasa single pole switch to turn off in say 10 minutes after being turned on. and do this as a permanent program. Specifically, a bathroom fan switch...If i turn it on, have it setup to turn off in 10 minutes after start. Can not seem to figure it out? I know I can go into app and set that switch to turn on and off in 10 minutes but, want it to do that every time it is turned on from the switch. I have Leviton switches in another house and that is how both bathroom fans are programed and it work great.  will leave amazon review as no way to get help from Kasa