Much talking was done with ref to F/O's travelling with capts in First. But that is all it was......talking. There has never been any documentation to say that this could happen. I travelled back from a destination a while ago in First and the F/O was not upgraded. This seems to be brought up time and time again.
I think I am right in saying this was discussed with the bosses at the last meeting we all had. It was however only mouth music. The only way the F/O can be upgraded is for the purser to become sympathetic. The one improvemnt I can see is for both Capt and F/O to be firm seat business with Capt upgradeable to First. Have colleagues who are in SQ and I think I am right in saying they have quite often positioned in Economy.