To add to this, if you can eventually add a filename template that would be great, at least for the major settings.
For example (taking 3 parameters out of many):
* = original filename
$MP4Q = MP4 encoding quality
$OUT = Output FPS
With the result of = *_$MP4Q_$OUT will generate "<original filename>_23_100_noaudio.mp4" and "<original filename>_23_100_audio.mp4"
Fantastic program! Thank you for your amazing effort.