I think it is not possible but often Dorico has an nice solution I do not know so I ask here.
I have a big band score with a lot going on in the horns but the rhythm section is playing the same chords the same way so I would like to have in the rhythm parts repeats and not in the horn parts. In the rhythm parts I can say play 6 times . And maybe at the beginning the the 6 rehearsal marks on a row. Is this possible or do I have to make a separate flow/file to make the rhythm parts.