I would prefer (suggest) a different method of left, right checking…
On another brand of consoles, there is an option for a dual tone signal generator,
the odd side with one and the even side with a different sine tone.
This in combination with the possibility to set the generator as a channel (stereo channels?) or a mix external input would be a real improvement.
On dLive it is already possible to patch the generator to the left and right side of the mixes independently.
A second generator would do the trick as well 😉