1) It would be great if you will create the option to view the waveform and history in different modules because then it would be broader and clearer.
2) It would be great if you will create the option to set up the width of the waveform because now that's the only width that the waveform can be, and it is very hard to notice dynamic changes like that (the track or master volume does not affect it, which is a good thing).