Hello, a simple waveform display with adjustable zoom and autosync would come in very handy for all synth sound programmers.. Some other trouble shoot use cases come to mind too, even without any special measuring efforts or precission. Just the waveform of a test signal can tell a lot. clipping, slew on broken op amps, LF roll of, ringing, unsymetric distortion and dc offsets, for example.

could be a mono setting for the goniometer display.

best regards..