Using Twin tuner tv with Kodio

I have installed Kodi with NextPVR can happily watch free to air TV.

TV tuner is a Sony PlayTV external USB box running on Windows 10. Which according to the specifications is a Dual Tuner device what allows you to record one channel whilst watching another on the other tuner. I does not allow you to record two different TV stations at the same time.

How do setup Kodi to record one channel whilst watching another?
Is it possible to schedule recordings.to wake up and shut down Kodi when they are complete?