K1C Sleep mode / Buzzer?

Does the K1C printer have any option to put it into “sleep mode”?
I think this would be useful when starting a long print job and not waiting for it to finish. In that case, the printer could basically shut down after the job is done.
I tried to force something like that manually using the G-code commands M1 and M25, but without success.
Also, as far as I know, this printer has a built-in buzzer. It would probably also be quite useful to signal the end of the print, or a certain phase, via G-code.
Unfortunately, the M300 command doesn’t work either.
Any ideas? :wink:

I use a TPLink wifi power switch to switch of my K1C printer approximately 4 min after completion of a print. Refer to the following link.

Bill

Thanks,
Marek.