After about four weeks, various long sessions and a heap of learning, a version upgrade, I’ve finally got a Project Template (the Concert Orchestra) with Fluffy Audio’s Dominus Choir all defaulted on a Playback Template. This might actually mean I can get round to some arranging, transcribing and composing. It does sound rather good though.
Many thanks to the absolutely top notch support on this site from users but a special thanks has to go to the Dorico team. I’ve never known support like this and I am truly grateful for it.