ATCS ATC 1 is Tower Controller position. This position is sounds like the Pilot position except you doní fly planes. U have just to look out and watch for traffic. Planes away from controller are shown like a red cross but they become not visible when distance from point of view is greater then the current visibility value. So that LVP operations are more realistic.
There are 10 different point of view of the aerodrome, but Controller may move everywhere he wants on the three axes, and can rotate view on vertical axes.