Thanks for the quick response. I do get that when I use a blank MIDI track, as per your picture.
The issue I'm having is with a track created using "Insert instrument" option. In CW 8.5, this would create an instrument folder with two tracks: one MIDI and the other audio for instrument output. Here I get one track that can record MIDI, but the FX box seems to be for the instrument audio, so only audio FX can be inserted. The instrument folder indicates 1 MIDI and 1 audio track (see attachment), but what is visible is a hybrid track (can record MIDI, but FX are audio)
Perhaps I should rephrase my question: how to show separate MIDI and audio tracks for an instrument?