I made some progress that now works atm for me:
I put digitakt midi out into digitone in.
I now send with the digitone sync, transport and cc1, and notes over the keyboard I hooked into the takt.
Anyway, if I use a keyboard on the miditrack on the digitakt, i cannot pitchbend or modwheel with the keyboard (because I feed midi into the miditrack of the digitakt and not directly into the digitone) - I don’t know exactly why exactly, but if I’m on the road with digitakt+tone, this solution works great.
I guess I need a merger.
keyboard -> merger
digitakt -> merger
merger -> digitone
In the end I guess I really need to do a wheel on a teensy that sends cc1 on channel 10 or something.
I want to avoid that, I don’t like soldering and stuff.