Originally Posted by
UKtravelbear
It's the same process as the other 'easy' airlines. You need to split yourself off the group PNR and then upgrade yourself, With most airlines you need to call as this isn't an online function. If you know of an airline that will do this online I'm sure we'd all be interested.
Probably for the better. It's generally not good to have irreversible functions on the website. Even cancelling a ticket is reversible, but merging PNRs is not.