I have done some small research for my self how to configure Seaboard Rise and Audiomodeling/ Samplemodeling vst instruments for use in Dorico.
If you want to use Seaboard rise in Dorico as an midi input controller for virtual instruments which allows to play with continuous expression, which is suitable for violin, trumpet etc., there is a small issue.
Seaboard Rise transmits polyaftertouch or channel pressure which are not accepted in Dorico as a source of midi data for expression maps. If you create an expression map in Dorico, you can choose midi cc as a source, but not channel pressure or poly aftertouch.
To solve this problem, one can transform poly aftertouch or channel pressure messages from seaboard to midi CC 11 with Midi-ox utility and LoopBe1 virtual midi driver, before it is transmitted to Dorico. After configuring that one can use Dorico expression map for expression cc 11, which is available in Dorico. With this setting it is possible to record expression data with Seaboard Rise in Dorico, edit it and use dynamics which will affect playback. This can yield good results comparable with NotePerformer, or maybe better, because one can tweak every midi data by itself with controller lanes in playback mode.
Audiomodelling vst instruments accept after touch (AT) messages and work with Seaboard Rise, but such setting is not compatibile with Dorico expression maps. Samplemodeling accept AT messages if you set expression CC number to 129, but one can not set 129 in Dorico as a CC in expression map.
A short tuturial how to connect LoopBe1 and Midi-ox
and how to configure Midi-ox to transform midi messages:
In this scenario Midi-ox translation map should be used with input event type “ChanAft”, channel “any” and output event type “ctrl” with “use input value one” checked.I set Seaboard Rise to piano mode to have better performance with legato minor seconds. Seaboard Rise sends midi messages to Midi-ox, then Midi-ox transform it, then send it to LoopBe1. Dorico input midi devices should exclude Seaboard Rise but include LoopBe1.
I wish that Dorico could transform midi messages like Cubase, so using third party utilities would be not necessary.
I hope it helps.