Sorry in advance if I'm missing something obvious, but I'd rather ask the question then assume (Or continue to play incorrectly).

If I have Hera crew on the Ghost with a stress, and I use her ability to perform a red maneuver, does the ship get another stress token? If so, is there a limit?

Thanks in advance!

Yes you gain a stress, and there's no limit (just get used to no actions if you do back to back reds)

Excellent. Thank you!