When you use iOS screen recording with microphone recording, then two tracks of audio will be recorded in the screen recording file. In LumaFusion if you double-tap on the screen recording clip in the timeline and open the Audio tool, then open the 'Configuration' header, you'll be able to select which of the two tracks to playback (you can then duplicate/detach the audio into a second copy and select the other track - this way you'll be able to independently edit the voiceover and internal audio from the recording).
Interesting (and possibly super cool).
I LOVE that I can isolate and screw around with the iPad audio AND microphone audio. It would be even better if Luma automatically created two separate "Configuration" headers - e.g. "Configuration (internal audio)" and "Configuration (external audio)".
But for now:
How do we duplicate the track in the "Configuration" header?
Also, I think a future version should turn this mixed channel audio on by default.