diff --git a/ApplicationView/ApplicationController.cs b/ApplicationView/ApplicationController.cs
index ef1bb5d3d..8e92d6ae2 100644
--- a/ApplicationView/ApplicationController.cs
+++ b/ApplicationView/ApplicationController.cs
@@ -414,11 +414,11 @@ namespace MatterHackers.MatterControl
 					HoldChildProportional.AddSelectionAsChildren(scene, new ArrayObject3D(), nameof(ArrayObject3D), "Array Part");
 					if(scene.SelectedItem is ArrayObject3D array)
 					{
-						array.SetCopy();
+						array.Rebuild();
 					}
 				},
 				//Icon = AggContext.StaticData.LoadIcon("subtract.png").SetPreMultiply(),
-				IsEnabled = (scene) => scene.HasSelection,
+				IsEnabled = (scene) => scene.HasSelection && !(scene.SelectedItem is SelectionGroup),
 			},
 			new SceneSelectionOperation()
 			{
diff --git a/DesignTools/Operations/ArrayObject3D.cs b/DesignTools/Operations/ArrayObject3D.cs
index a6b2fb24b..107a5d232 100644
--- a/DesignTools/Operations/ArrayObject3D.cs
+++ b/DesignTools/Operations/ArrayObject3D.cs
@@ -36,11 +36,13 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 {
 	public class ArrayObject3D : Object3D, IRebuildable
 	{
-		IObject3D item;
-
 		public int Count { get; set; } = 3;
 		public double XOffset { get; set; } = 30;
-		public double YOffset { get; set; } = 30;
+		public double YOffset { get; set; } = 0;
+		public double Rotate { get; set; } = 0;
+		public double Scale { get; set; } = 1;
+		public bool RotatePart { get; set; } = false;
+		public bool ScaleOffset { get; set; } = false;
 
 		public override string ActiveEditor => "PublicPropertyEditor";
 
@@ -52,21 +54,33 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 		{
 			this.Children.Modify(list =>
 			{
+				IObject3D lastChild = list.First();
 				list.Clear();
-				for(int i=0; i<Count; i++)
+				list.Add(lastChild);
+				var offset = Vector3.Zero;
+				for (int i=1; i<Count; i++)
 				{
-					var next = item.Clone();
-					next.Matrix = Matrix4X4.CreateTranslation(XOffset * i, YOffset * i, 0);
+					var rotateRadians = MathHelper.DegreesToRadians(Rotate);
+					var nextOffset = new Vector2(XOffset, YOffset);
+					if (ScaleOffset)
+					{
+						for (int j = 1; j < i; j++)
+						{
+							nextOffset *= Scale;
+						}
+					}
+					nextOffset.Rotate(rotateRadians * i);
+					var next = lastChild.Clone();
+					next.Matrix *= Matrix4X4.CreateTranslation(nextOffset.X, nextOffset.Y, 0);
+					if (RotatePart)
+					{
+						next.Matrix = PlatingHelper.ApplyAtCenter(next, Matrix4X4.CreateRotationZ(rotateRadians));
+					}
+					next.Matrix = PlatingHelper.ApplyAtCenter(next, Matrix4X4.CreateScale(Scale));
 					list.Add(next.Clone());
+					lastChild = next;
 				}
 			});
 		}
-
-		public void SetCopy()
-		{
-			item = Children.First();
-			Children.Remove(item);
-			Rebuild();
-		}
 	}
 }
\ No newline at end of file