X'S Station

I have seen all the videos of X and I cannot figure out how you can get to the other side of the track in the loading station.  You would have to cross over the track but there is the train blocking and those gates.  Is there an opening to walk on in the front or back? Or is there a seperate queve line for each side? Please respond!

There is two seperate lines for the different sides.

Also you walk under the station to get on the other side of the track.  There is a bridge in the station but that's for employees, that where they control the ride from up on the bridge.

As the queue reaches the station building it splits in two, with one side leading up a ramp to the left side of the train and the other crossing UNDER the station and up a ramp to the right side of the train.  Once you've ridden, you'll have to exit completely and re-enter the queue to switch sides.