thanks for your comments.
first, I have to apologize for a (tiny) update for the ABus mixers:
insertFx have a channel name on top of the device, which I forgot to connect with the actual mixer's channel name (which you can define by yourself). it always showed 'ch01'. sorry, fixed that.
then, regarding jk's suggestion to have a Fb option for the Aux/Busses:
in fact I thought of that too, but dismissed it with regard to 'let the mixer just be a mixer'.
but hey, why not involve some Fb network madness?
here it is:
download updated
16-4
download updated
16-4ABus
download
16-4ABusFb