I would like to give some suggestions to improve usability:
Auto Gain feature would be very useful for use in live situations with variating speakers
increase performance for drag&drop in all lists. Often it reads an input where you only want to scroll or it is impossible to drag&drop in custom strip assign as you have to drag it over another channel and it uses this instead the first one
on USB- Stereo- Play or Multichannel it is not possible to have a folder structure as it only reads in the folder for playing all wav-files. A folder structure for example “live recordings”, “music for break”, “music for effects”, and more would be helpful.
change insert point destination in mix (if technically possible) to allow where the insert is located (before/ after eq, comp, etc.)
show symbols in scripple strip displays (example microphone, guitar, snare)
smart encoders for PEQ (the encoders could be used to change/ edit parameters of other things on the screen, example in comp, gate, when they are shown to edit)
page up/down button instead of scrolling, example in routing shows mix 1-8 and you have to scroll with fingers instead having a button for page left/ right (or Mix 1-8 and Mix 9-12, FX)
change mix (buttons on the right) should also set this mix to be set as selected (or please give the option in the setup)
complete documentation on the website for SQ+ series: Midi Implementation, Handbook (to be downloadable as .pdf), editor software, midi tools, etc.