Originally Posted by
m3red
you can but you’ll have to break through the barrier and your not supposed to leave the station after! Basically you need to go check in and not scan your airport express ticket to use when you intend to travel to the airport
I was able to do it. There two zones with barriers, one for the bag dropped and the other for boarding the train. In the morning, I drop off my bags. I returned in the afternoon using the same ticket. The barrier for the bag drop is to make sure you are not gaming the system.