A question about usage, specifically powering up

[ThomasDorf]

A quick question about the PiJuice...

I have a project where I would like to be able to:

• Remove external power and have the raspberry shut down
• (Either immediately or after a short period of time. Ideally the countdown would stop if external power returns.)
• Manually shut down the raspberry nicely
• Re-attach external power and have the raspberry boot up again, regardless of how it was shut down.

Is this possible with the PiJuice? (I ask because I have tried another PSU solution where the raspberry would only boot up again if the PSU had shut it down.)

Where would the external power be connected, to the PSU or the raspberry?

Thanks