In https://www.sbb.ch/de/freizeit-ferien/ideen/angebot.html/staedtereisen/barcelona they describe how to make the route Switzerland - Barcelona. However, I have one doubt.
I wonder if the train Lyon - Barcelona (9743), at 14:35, is expected to wait for passengers from the train Geneve - Lyon at 14:22. I ask in case that the train Geneve - Lyon would suffer a delayed, since there are no more trains to go to Spain.