CX Staff are required to list a minmum of 4 hrs before the flight via the IntraCx Travel desk site
OR turn up 2 hours before and register at the staff travel desk. If you don't list it doesn't mean you wont get on the flight BUT they get no priority according to their DOJ and Ticket type. They would be at the tail end of ALL other staff that listed.
As other Airline staff I imagine you too
should list to get your priority.
You could ring the CX benefits centre in HK and ask them. 2747 2222.
Select the staff travel option and wait for them to answer you, it shouldn't take too long.