I think it’s supposed to be able to do that, but I haven’t been successful in using that when I’ve tried. I’m not sure if that’s because of the particular codecs Wyze is using for audio and video to package into the MP4s their cameras generate or if it’s something else. I’ve had better results with FFmpeg.
That still requires concatenating multiple files (a fairly easy batch operation for a PC), which @pils.tcn indicates isn’t feasible, but it’s the most straightforward way to do it in my experience, provided that the cameras themselves are easily accessible.