I can't help you with the room request thing, but we were on the Zebra trail room 3435 and it was the best. Not too far down the hall, right off the lobby. Take the elevator right around the corner to the 1st floor and the pool and quick service resturant is right there. We saw animals all the time and were pretty close at times.
We had a queen and bunkbeds in that particular room.
Have fun.
Sam