Beginners Quick Guide Page   Follow these simple steps for a quick get you going ATLS Level Crossing. 1)    Place a Controller/Slave on the live track pointing at your crossing. 2)    Open its Properties box (?) and click the big + icon.  This will automatically set the next free Channel. Save the box. 3)    Place a Trigger on the track some distance away where you want the approaching train to activate the crossing. 4)    Place a Trigger on the track close to the crossing where you want the train to clear the crossing as it leaves. 5)    Open each Trigger's Properties Box and set the Channel to the same as the Controller/Slave selected.  Save the box. 6)    Repeat the Trigger placement and Channel set for each track your crossing has.  Save the session and play.