update

Furnace/FurnaceRT/Equipments/Schedulers/SchedulerModuleFactory.cs

@@ -64,6 +64,10 @@ namespace FurnaceRT.Equipments.Schedulers
             {
                 _lstLPs.Add(_lp3);
             }
+            if (SC.GetValue<bool>($"System.SetUp.IsLP4Installed"))
+            {
+                _lstLPs.Add(_lp4);
+            }
             //_lstBatchAStocker = new List<SchedulerStocker>();
             //_lstBatchBStocker = new List<SchedulerStocker>();
             _lstExtraDummyStocker = new List<SchedulerStocker>();