Maintain barbershop voice labels, but playback with different instruments

I am a new user to Dorico after using Finale for a long time. I primarily arrange for barbershop groups. I do much by “ear” - so hearing playback clearly is important. I have used “clarinet” playback in Finale - but I can’t figure out how to keep the voice labels (tenor/lead/bari/bass) but have it play in something other than choral vox…

Welcome to the forum, Jay. You can change the sound used for each instrument in Play mode. This video (part of a bigger series about playback in Dorico, which I commend to you) should help:

Thank you!