diff --git a/GamecraftModdingAPI/App/GameGameEngine.cs b/GamecraftModdingAPI/App/GameGameEngine.cs
index dea3821..85fb672 100644
--- a/GamecraftModdingAPI/App/GameGameEngine.cs
+++ b/GamecraftModdingAPI/App/GameGameEngine.cs
@@ -102,16 +102,27 @@ namespace GamecraftModdingAPI.App
 			if (filter == BlockIDs.Invalid)
 			{
 				foreach (var (blocks, _) in allBlocks)
-				foreach (var block in blocks.ToBuffer().buffer.ToManagedArray())
-					blockEGIDs.Add(block.ID);
+				{
+					var buffer = blocks.ToBuffer().buffer;
+					for (int i = 0; i < buffer.capacity; i++)
+						blockEGIDs.Add(buffer[i].ID);
+				}
+
 				return blockEGIDs.ToArray();
 			}
 			else
 			{
 				foreach (var (blocks, _) in allBlocks)
-				foreach (var block in blocks.ToBuffer().buffer.ToManagedArray())
-					if (block.DBID == (ulong) filter)
-						blockEGIDs.Add(block.ID);
+				{
+					var array = blocks.ToBuffer().buffer;
+					for (var index = 0; index < array.capacity; index++)
+					{
+						var block = array[index];
+						if (block.DBID == (ulong) filter)
+							blockEGIDs.Add(block.ID);
+					}
+				}
+
 				return blockEGIDs.ToArray();
 			}
 		}
diff --git a/GamecraftModdingAPI/BlockGroup.cs b/GamecraftModdingAPI/BlockGroup.cs
index 2cd0f42..8d9e761 100644
--- a/GamecraftModdingAPI/BlockGroup.cs
+++ b/GamecraftModdingAPI/BlockGroup.cs
@@ -1,4 +1,7 @@
 using Gamecraft.Blocks.BlockGroups;
+using Unity.Mathematics;
+using UnityEngine;
+
 using GamecraftModdingAPI.Blocks;
 using GamecraftModdingAPI.Utility;
 
@@ -11,23 +14,36 @@ namespace GamecraftModdingAPI
     {
         internal static BlueprintEngine _engine = new BlueprintEngine();
         public int Id { get; }
-        private Block _sourceBlock;
+        private readonly Block sourceBlock;
 
         internal BlockGroup(int id, Block block)
         {
             if (id == BlockGroupUtility.GROUP_UNASSIGNED)
                 throw new BlockException("Cannot create a block group for blocks without a group!");
             Id = id;
-            _sourceBlock = block;
+            sourceBlock = block;
         }
+        
+        /// <summary>
+        /// The position of the block group. Calculated when GetBlocks() is used.
+        /// </summary>
+        public float3 Position { get; private set; }
+        
+        /// <summary>
+        /// The rotation of the block group. Calculated when GetBlocks() is used.
+        /// </summary>
+        public float3 Rotation { get; private set; }
 
         /// <summary>
-        /// Collects each block that is a part of this group.
+        /// Collects each block that is a part of this group. Also sets the position and rotation.
         /// </summary>
         /// <returns>An array of blocks</returns>
         public Block[] GetBlocks()
         {
-            return _engine.GetBlocksFromGroup(_sourceBlock.Id);
+            var ret = _engine.GetBlocksFromGroup(sourceBlock.Id, out var pos, out var rot);
+            Position = pos;
+            Rotation = ((Quaternion) rot).eulerAngles;
+            return ret;
         }
 
         /// <summary>
diff --git a/GamecraftModdingAPI/Blocks/BlockEngine.cs b/GamecraftModdingAPI/Blocks/BlockEngine.cs
index 5566525..9ce6d62 100644
--- a/GamecraftModdingAPI/Blocks/BlockEngine.cs
+++ b/GamecraftModdingAPI/Blocks/BlockEngine.cs
@@ -12,9 +12,9 @@ using RobocraftX.Scene.Simulation;
 using Svelto.DataStructures;
 using Svelto.ECS;
 using Svelto.ECS.Hybrid;
+using Unity.Mathematics;
 
 using GamecraftModdingAPI.Engines;
-using Unity.Mathematics;
 
 namespace GamecraftModdingAPI.Blocks
 {
@@ -224,8 +224,10 @@ namespace GamecraftModdingAPI.Blocks
 			var bodies = new HashSet<uint>();
 			foreach (var (coll, _) in groups)
 			{
-				foreach (var conn in coll.ToBuffer().buffer.ToManagedArray())
+				var array = coll.ToBuffer().buffer;
+				for (var index = 0; index < array.capacity; index++)
 				{
+					var conn = array[index];
 					if (conn.clusterId == cid)
 						bodies.Add(conn.machineRigidBodyId);
 				}
@@ -251,8 +253,11 @@ namespace GamecraftModdingAPI.Blocks
 			var groups = entitiesDB.QueryEntities<GridConnectionsEntityStruct>();
 			foreach (var (coll, _) in groups)
 			{
-				foreach (var conn in coll.ToBuffer().buffer.ToManagedArray())
-				{ //Static blocks don't have a cluster ID but the cluster destruction manager should have one
+				var array = coll.ToBuffer().buffer;
+				for (var index = 0; index < array.capacity; index++)
+				{
+					var conn = array[index];
+					//Static blocks don't have a cluster ID but the cluster destruction manager should have one
 					if (conn.machineRigidBodyId == sbid && conn.clusterId != uint.MaxValue)
 						return new Cluster(conn.clusterId);
 				}
@@ -267,8 +272,10 @@ namespace GamecraftModdingAPI.Blocks
 			var set = new HashSet<Block>();
 			foreach (var (coll, _) in groups)
 			{
-				foreach (var conn in coll.ToBuffer().buffer.ToManagedArray())
+				var array = coll.ToBuffer().buffer;
+				for (var index = 0; index < array.capacity; index++)
 				{
+					var conn = array[index];
 					if (conn.machineRigidBodyId == sbid)
 						set.Add(new Block(conn.ID));
 				}
diff --git a/GamecraftModdingAPI/Blocks/BlueprintEngine.cs b/GamecraftModdingAPI/Blocks/BlueprintEngine.cs
index f2f0bef..4104ae6 100644
--- a/GamecraftModdingAPI/Blocks/BlueprintEngine.cs
+++ b/GamecraftModdingAPI/Blocks/BlueprintEngine.cs
@@ -17,6 +17,7 @@ using Svelto.ECS.Serialization;
 using Unity.Collections;
 using Unity.Mathematics;
 using UnityEngine;
+using Allocator = Svelto.Common.Allocator;
 
 namespace GamecraftModdingAPI.Blocks
 {
@@ -24,8 +25,9 @@ namespace GamecraftModdingAPI.Blocks
     {
         private readonly MethodInfo getBlocksFromGroup =
             AccessTools.Method("RobocraftX.CR.MachineEditing.PlaceBlockUtility:GetBlocksSharingBlockgroup");
-        private readonly NativeDynamicArray selectedBlocksInGroup = new NativeDynamicArray();
-        private readonly NativeHashSet<ulong> removedConnections = new NativeHashSet<ulong>();
+
+        private NativeDynamicArray selectedBlocksInGroup;
+        private NativeHashSet<ulong> removedConnections = new NativeHashSet<ulong>();
         
         private static readonly Type PlaceBlueprintUtilityType =
             AccessTools.TypeByName("RobocraftX.CR.MachineEditing.PlaceBlueprintUtility");
@@ -44,22 +46,29 @@ namespace GamecraftModdingAPI.Blocks
         
         public void Ready()
         {
+            selectedBlocksInGroup = NativeDynamicArray.Alloc<EGID>(Allocator.Persistent);
         }
 
         public EntitiesDB entitiesDB { get; set; }
         public void Dispose()
         {
+            selectedBlocksInGroup.Dispose();
         }
 
-        public Block[] GetBlocksFromGroup(EGID blockID)
+        public Block[] GetBlocksFromGroup(EGID blockID, out float3 pos, out quaternion rot)
         {
-            var list = new FasterList<Block>();
-            object blockPos = null, blockRot = null;
-            getBlocksFromGroup.Invoke(null, new[] {blockID, selectedBlocksInGroup, entitiesDB, blockPos, blockRot});
-            for (uint i = 0; i < selectedBlocksInGroup.Count<EGID>(); i++)
-                list.Add(new Block(selectedBlocksInGroup.Get<EGID>(i)));
+            var blockPos = default(float3);
+            var blockRot = default(quaternion);
+            var parameters = new object[] {blockID, selectedBlocksInGroup, entitiesDB, blockPos, blockRot};
+            getBlocksFromGroup.Invoke(null, parameters);
+            pos = (float3) parameters[3];
+            rot = (quaternion) parameters[4];
+            int count = selectedBlocksInGroup.Count<EGID>();
+            var ret = new Block[count];
+            for (uint i = 0; i < count; i++)
+                ret[i] = new Block(selectedBlocksInGroup.Get<EGID>(i));
             selectedBlocksInGroup.FastClear();
-            return list.ToArray();
+            return ret;
         }
 
         public void RemoveBlockGroup(int id)
@@ -195,7 +204,7 @@ namespace GamecraftModdingAPI.Blocks
 
             public static MethodBase TargetMethod()
             {
-                return AccessTools.Constructor(AccessTools.TypeByName("RobocraftX.CR.MachineEditing.RemoveBlockEngine"));
+                return AccessTools.GetDeclaredConstructors(AccessTools.TypeByName("RobocraftX.CR.MachineEditing.RemoveBlockEngine"))[0];
             }
         }
 
@@ -213,7 +222,7 @@ namespace GamecraftModdingAPI.Blocks
 
             public static MethodBase TargetMethod()
             {
-                return AccessTools.Constructor(AccessTools.TypeByName("RobocraftX.CR.MachineEditing.SelectBlockEngine"));
+                return AccessTools.GetDeclaredConstructors(AccessTools.TypeByName("RobocraftX.CR.MachineEditing.SelectBlockEngine"))[0];
             }
         }
     }