Is The Play Mode View in the screenshot below still available in Dorico 4.2?

No, Play mode in Dorico 4 does not provide an “inline” piano roll view: the piano roll appears only in the lower zone (both in Play mode and in Write mode).

At the moment you can’t view the music for more than one instrument in the Key Editor, but that is something we are working on at the moment.

Okay cool thanks Daniel :pray:t2: