Hi Everyone
I am not sure if I am creating a mess or if this can be solved easier.
I’d like to have the function to:
Play my synths from my Keystep directly
Record into Hapax
Send sequences from Hapax to the synths
I have now routed everything from within Ableton.
The Channels on the Hapax have a Input from Device from Channel X and Output then to the Same Channel in the USB.
Am I complicating anything? (see Screenshots)
really it all depends what you are trying to achieve…
if you want to record hapax into Ableton the above approach works.
if you want a more standalone focus. (assuming you have external mixer)
you could do something like :
keystep → hapax → synth(s)
Ableton ↔ hapax
(i.e Ableton is connected via usb device, key step = usb host)
there is no right/wrong…
Ive used different approaches at different times, and keep changing !
so, for the same reason, Id not stress about it…
if it works that way for you, do it that way , until you find it doesn’t 
Super, thx!
