Assign MIDI keyboard to instrument/staff?

MIDI keyboard input is working fine in Dorico, but can’t see how to assign different keyboards to different instrument/staves. Is this possible? Any help appreciated.

No, there’s no option for this.

Notes from your MIDI keyboard should appear on the staff where the caret is active.
Or are you talking about playback?
In Play mode you can set us output to MIDI channels (below the VST section). You would of course have to make sure your Output Channel and MIDI Kbd input sync.