[Elecraft] KX3 - headphones AND speaker simultaneously?

[Sean Donovan]

Is there any way to do this? From the B4 Rev of the KX3 Manual, on page 5,
this seems precluded.

Some context: I was doing a SOTA activation earlier today, and my wife
joined me on the hike. I was recording the audio with a small voice
recorder from the headphone port, listening using the passthrough monitor
on the recorder.  She wanted to hear both sides rather than just me so she
could have some context.

Is this even possible? I could see the headphone port's internal switch
having direct hardware control over the speaker, and simply not possible.
If it is possible (battery life be damned) could there be a setting added?

Thanks!