Powering down after scan

I was wondering if this feature is available on the Avast free edition, As I was going to perform a full system scan which would’ve taken ages and I had to go into the city centre.
Anyway I powered down, went out and performed the scan when I got back.

Anybody?? I was wondering if avast are planning to incorporate this feature in future editions.
AVG has this feature but there are too many false positives with it, haven’t used it in a few years.
Anyone got anything to say about this feature?

You could schedule the scan then set it to shutdown on completion