Originally Posted by
Wasabi Tofu
No written privilege.
However, at HKG and some airports, when an aircraft has a first class, gate agents occasionally make 3rd queue for F and DM(and OWE?), then check statuses of passengers in J queue and move passengers of F and DM to the 3rd queue. Passengers in the 3rd queue board first.
Rumors say this operation is also applied when J queue is longer than Y queue

this was my observation at SHA - and I'm not even sure there was an F cabin on the day.
The 'priority' queue was miles long, and the GAs pulled out a handwritten sigh with 'Diamond' on it, and a couple of people went up to use that.
Based on that i would have thought at least some DMs might think there is an entitlement.