The nav station seems to have been rendered obsolete by the 24th century. Remember that on the Enterprise D, the 2 forward stations were Helm and Con. Voyager's bridge design had the Con station in the rear, on the opposite side with Security.
No, they were conn (meaning helm) and ops (meaning ship operations). On TNG, Data was the operations manager and manned the ops station; on VGR, Harry Kim held that post.
''Ops!'' Thank you. I have no idea why I said conn. Khaaaaan!!
And the moment I read your post, I can clearly recall VOY's pilot, where Harry assumes the Ops station.
My Trek Instant Recall Fu is weak indeed. I'm getting old.