Is this possible? I am led to believe a perk of BA Gold (OW Emerald) is that I can use other oneworld Airlines' check in facilities.

So I am at HKG early from a connecting flight that was on another non-OW carrier. I go to BA check in for my BA F flight to LHR, but I am too early and it is closed, no one's there, so I tried QF and CX and neither would check me in for my BA flight.

I guess the way this should be interpreted is that you can use other carriers' F check-ins only if you are actually flying with them?

Cheers, Howard