[Help] How to change the crew’s four ranks limit

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Hello. I am creating some crew members for my playthrough, and with the master and legendary crew members being available but being just regular (with no previous npc content) I want to make my custom crew (imaginarly developed characters)   be able to reach these ranks

q1. Does anyone have any idea of how to change the crew member’s limit of ranks that can be earned? Is set to 4, I want to change it to 5 (or 6 if q2 is answered)

q2. How do I change the experience needed to earn ranks?

Thanks!

Edited July 8, 2019 by ----