how to make cues visible in single parts too????

I have a written a score with soloists , choir and orchestra. In order to produce a complete vocal score containing the soloists and the choir singers I wanted to add some cues of orchestral instruments to help the singers to enter. I can create the cues in the main score, but they dissappear in the single parts. I couldn’t find any information about how to change this the other way round: the cues should be shown in the part and not in the score …
Any help?

Cues are a Layout Option. I’m not sure I can explain it any more clearly than the relevant pages in the user manual.