not sure about the synching, but I think others are doing it by sending midi tempo info TO the QC (I don’t think the QC sends yet, only receives)
the fx setup/channel lanes config is doable; you can use a freq-crossover style split to send only the low freq notes to an octave-shifted lane for faux bass. Plenty of room for fx with it, and very easy to assign the ‘mute’ function on the output to a switch/scene/XP- whatever you want.
I’ve done something similar for applying different fx to different frequencies of the same instrument. Maybe that preset would give you a headstart with the cross-over split?
that’s really only for the cross-over split. If you wanted the bass amped separately, you’d change its lane output to whichever one you’re sending to the bass amp, instead of carrying it over into another lane
EDIT: sorry, got carried away, I see you don’t actually HAVE the QC yet. Well, if you pull the trigger, you can definitely do what you’re asking