Now that this has been out nearly two years, here're some of the GUI issues reported since May 2016
GUI is so fuzzy, cannot read unless extra large. It needs to be sharper, higher contrast, like the ARP2600, maybe darker, graphite/black background like the real CS80 panel. Why is it brown?
GUI has tiny font. All that extra space gained from V2 you could use a way bigger, clearer font.
I+II l sync button legend implies it's enabled by tri/saw rocker. It's not.
Multi Zones 5, 6 7 and 8 are missing. They are named incorrectly as 1,2,3 4,1,2,3,4.
Footage numbering is musically incorrect. They should read 5 1/3, and 2 2/3 not 6 and 2.5.
Channel Footage labelling uses 1, and 2. Everywhere else uses I, II
The drop down selections for Zones, in 'Multi' are headed 'AFFECTE_VOIE1', 'AFFECTE_VOIE2'. All other drop downs are in English.
The grey push buttons do not indicate adequately if they are pushed in or out.
Sorry to bang on about this, but the CS80 is such a great sounding app, yet probably the worst GUI in the range, it needs some attention. It needs a UX person to review it, and a graphics expert to address the usability/visual clarity issue.
cheers Jeffrey