1. Ability to select oscillator wave. What was the logical reason to remove it? it prevents tabbing
2. Now on to bottom part of the synth:
Aesthetics:
Why Zebra HZ has to have numbers behind module tabs FMO 1-4, MM 1-12, Comp 1-4, MSEGS 1-8? In zebra 2 there was no need for that and now we suddenly need it? we know its FMO and there will be more then 1 module, we know there will be more then 1 slot of mods in the matrix (hence the name matrix...) it doesnt make sense and the tabs that are already squizeed, makes the even more busy.
Why Arp/Seq change to Arp/ctrl?
Continuing on aesthetics, i also dont understand why to blend effects with the effect matrix. On regular version its just separated visualy and it makes perfect sense, its organised.
I know it might be a bit like a rant, but those small things that were in new zebra 2 gui really made workflow improvements, just by having everything organised and not looking too busy. And for Zebra HZ despite adding some improvements (like bigger modules, Arp/Seq less cramped and "easier" to to get around because of that, colored X/Y to differentiate from 1 - 4) it actually took away things that improved Zebra 2. Whats a bit funny, Zebra 2 has more tabs at the bottom then ZHZ and looks less busy
also very nice improvisation, really does look cleaner!. And that reverb effect part if only could have separation from effect matrix (or same color as the left bottom part (pitch, glide, voice, micro tuning) i think would look even better 
