Polder TMR-606-90 Digital Kitchen Timer with Magnet and Stand, White

when the timer goes off and you hit stop, does it automatically revert back to zero or does it stay on previous settings-i.e. if you are making mulitple batches of cookies, does it need to be reset each time, or does it hold last setting?

Do the buttons make a beep when setting the timer?

Do you have an option to set the alarm off. Say in case I am using it to time an appointment with a client, and I don’t want the very loud alarm

How do you turn it off?