How to print choir part

I have a score with SATB choir plus orchestra. How do I print just the choir part? I can see how to print the S, A, T, and B parts separately, but not together without printing the full score. (And is the answer any different when I’ve added a piano reduction of the orchestral part, for rehearsal, and will want to print the piano reduction on the choir copy but not the conductor’s version?)

Hi,
you can see : How to Create Custom Layouts | Setup Mode in Dorico - YouTube
jp

Create a new Layout for the Vocal Score. In Setup mode, select the Layout name on the right-hand panel and then select the choir and Piano reduction Players to be included in that layout; deselect the other instruments from that layout.

Select the Full Score Layout and de-select the Piano player.