I have checked the forum for other answers to this but couldn’t get them to work.
From a recent Zoom session I have an mp4 video and m4a audio track. The mp4 audio is not good and I wanted to remove it and add the m4a audio to create a new final mp4.
I muted the existing audio on the mp4 and could import the m4a onto Playlists, but I couldn’t find a way to combine the 2, without simply overwriting the video data.