<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Rudi:
I also don't know yet ... for upgrades when I check-in with Swissport agents in ZRH (who so far knew little about the miles&more program and probably have no online access to my miles&more account).
</font>
Just a general note: For these kinds of problems I have found that a call to LH SEN line right before or even while dealing with the check in agents can solve the problem. They can acces the reservation and make the necessary changes, or even give instructions.