Filter Blocks:
- 1st engineer
- 2nd engineer
- 2nd mate
- 2nd officer
- 3rd engineer
- 3rd mate
- 3rd officer
- 4th engineer
- AB
- Bosun
- Cadets
- Captain
- Catering
- Chief Cook
- Chief Engineer
- Chief Mate
- Chief officer
- Chief Steward
- Cook
- Crane operator
- Deck hands
- Electrican
- ETO
- Fitter
- Full crew
- Laundry man
- Master
- Mate
- Mess boy
- Motorman
- Oiler
- Operator
- Pumpman
- Steward
- Welder
- Wiper