pay:
Cathay Pacific Airways Pilots Salary <<< i'm not too sure if this is still the same but it should be a rough idea of what to expect.
duties:
Free File Hosting - Upload files or images for free - Hide My Ass! <<< this pdf file is a cathay pacific S/O guide in detail of what S/Os do on cathay's 747-400.
time at FTA:
https://www.pprune.org/fragrant-harb...gramme-30.html << post #595 by holdmetight covers pretty much your time at FTA and what you do.
hope this helps