When I was there, there was at least one train on the transfer track with 2 trains being dispatched for one side of the station. But later in the day, they were using both sides, so it logically makes sense to put another train on, but I can't be sure.
Definitely only two trains. They do this with two trains everyday.
I've noticed they do this everyday as well. they use one side of the station with two trains. I prefer that anyways so I don't wait 30 minutes just on the loading platform.