Can you tell me how the inheritance of contributors work?

We have some job with interviewer, recruiter, hiring manager and delegates.
Now in Stage 1 Apply all of recruiters and interviewers were added in feedback as contributors, because I was able to set some checkbox to do so.

But in stage 2 "Interview" and 3 "Trial day" we use the "interview app" and the hiring team was not completely added as contributors to the interview. I was not able to see a checkbox here to define the same like in "feedback app". Is there a way to do so?