diff --git a/Stars Assistant/Services/FleetManager.cs b/Stars Assistant/Services/FleetManager.cs
index 2601593..24e0d8a 100644
--- a/Stars Assistant/Services/FleetManager.cs	
+++ b/Stars Assistant/Services/FleetManager.cs	
@@ -17,7 +17,7 @@ public class FleetManager
     /// <summary>
     /// SourceCache for DynamicData views
     /// </summary> 
-    private SourceCache<Fleet, int> _fleets = new(f => f.Id);
+    private SourceList<Fleet> _fleets = new();
 
     public FleetManager() {}
 
@@ -33,20 +33,27 @@ public class FleetManager
 
     public void test() 
     {
-        /*
-        _fleetSummaries = _fleets.Connect()
-            .Group(fleet => fleet.TrueDestination)
-            .Transform(grouping => new FleetSummary
-            {
-                Destination = grouping.Key,
-                TotalIronium = grouping.Items.Sum(f => f.Ironium),
-                TotalBoranium = grouping.Items.Sum(f => f.Boranium),
-                TotalGermanium = grouping.Items.Sum(f => f.Germanium),
-                TotalColonists = grouping.Items.Sum(f => f.Colonists)
-            })
-            .Sort(SortExpressionComparer<FleetSummary>.Ascending(f => f.Planet))
-            .AsObservableChangeSet(summary => summary.Planet);
-        */
+        var xxxxx = _fleets.Connect()
+            .GroupOn(fleet => fleet.TrueDestination)
+            .Transform(group => 
+                group.List.Connect()
+                .ToCollection()
+                .Select(query => 
+                {
+                    var iro = query.Sum(f => f.Ironium);
+                    var bor = query.Sum(f => f.Boranium);
+                    var ger = query.Sum(f => f.Germanium);
+                    var col = query.Sum(f => f.Colonists);
+                    return new FleetSummary 
+                    {
+                        Destination = group.GroupKey,
+                        TotalIronium = iro,
+                        TotalBoranium = bor,
+                        TotalGermanium = ger,
+                        TotalColonists = col
+                    };
+                })                    
+            );
     }
 
     /// <summary>
@@ -60,7 +67,7 @@ public class FleetManager
         _fleets.Edit(innerCache =>
             {
                 innerCache.Clear();
-                innerCache.AddOrUpdate(allFleets);
+                innerCache.Add(allFleets);
             }
         );
     }