Okay try this:
- Within webconf navigate to Hardware->Audio
- Select
Generic Usb Device - Enable
Advanced view - Change
Jackd Optionsto-P 70 -t 2000 -d alsa -d hw:Digitakt -r 44100 -p 256 -n 2 -s -S -X raw - Save
- Reboot
This may give start with the first two audio inputs / outputs. It may offer more. After rebooting you could look in webcong Hardware->Audio at the Mixer Controls. Click the + and see if the other audio input / output are available.
You could use -r 48000 if you want 48000 samples per second.