diff --git a/API/oursin/meshes.py b/API/oursin/meshes.py
index e36f0f81..4fc86396 100644
--- a/API/oursin/meshes.py
+++ b/API/oursin/meshes.py
@@ -18,7 +18,7 @@ class Mesh:
   """Mesh Object in Unity
   """
 
-  def __init__(self,position= [0.0,0.0,0.0], scale= [1,1,1], color=[1,1,1],
+  def __init__(self, position= [0.0,0.0,0.0], scale= [1,1,1], color=[1,1,1],
                material = 'default', interactive = False):
     """Create a mesh object
 
@@ -47,6 +47,8 @@ def __init__(self,position= [0.0,0.0,0.0], scale= [1,1,1], color=[1,1,1],
       interactive = interactive
     )
 
+    counter += 1
+
     self._update()
     self.in_unity = True
 
@@ -159,20 +161,33 @@ def set_material(self, material):
 
 
 #actually initializes each object(s), doesn't use any parameters other than how many to initialize (uses all defaults)
-def create(num_objects):
+def create(num_objects, position= [0.0,0.0,0.0], scale= [1,1,1], color=[1,1,1],
+               material = 'default', interactive = False):
   """Create multiple meshes
 
   Parameters
   ----------
   num_objects : int
-    number of mesh objects to be created      
+      number of mesh objects to be created
+  position : list, optional
+      default position nullspace (ap, ml, dv), by default [0.0,0.0,0.0]
+  scale : list, optional
+      default scale, by default [1,1,1]
+  color : list, optional
+      default color, by default [1,1,1]
+  material : str, optional
+      default material, by default 'default'
+  interactive : bool, optional
+      default interactive state, by default False
+
 	Examples
 	--------
 	>>> meshes = urchin.meshes.create(2)
   """
   mesh_objects = []
   for i in range(num_objects):
-    mesh_objects.append(Mesh())
+    mesh_objects.append(Mesh(position=position, color=color, scale=scale,
+                             material=material, interactive=interactive))
   return(mesh_objects)
 
 def delete(meshes_list):
@@ -261,7 +276,7 @@ def set_colors(meshes_list, colors_list):
   meshes_list = utils.sanitize_list(meshes_list)
   colors_list = utils.sanitize_list(colors_list)
 
-  data = vbl_aquarium.generic.IDListVector3List(
+  data = vbl_aquarium.generic.IDListColorList(
     ids = [x.data.id for x in meshes_list],
     values = [utils.formatted_color(utils.sanitize_vector3(x)) for x in colors_list]
   )
diff --git a/API/tests/test_schemas.py b/API/tests/test_schemas.py
deleted file mode 100644
index e60092b6..00000000
--- a/API/tests/test_schemas.py
+++ /dev/null
@@ -1,34 +0,0 @@
-import oursin as urchin
-import pytest
-import jsonschema
-import json
-import requests
-
-from unittest.mock import patch
-
-classes = ['AreaGroupData','CameraModel','CustomAtlasModel',
-           'CustomMeshData','CustomMeshModel','MeshModel','ParticleGroupModel']
-raw_url = 'https://github.com/VirtualBrainLab/vbl-json-schema/raw/main/src/vbl_json_schema/schemas/urchin/'
-
-def load_schema(idx):
-    url = f'{raw_url}{classes[idx]}.json'
-    response = requests.get(url)
-    return json.loads(response.text)
-
-def test_mesh():
-    schema = load_schema(5)
-    with patch.object(urchin.client.sio, 'emit') as mock_emit:
-        mesh = urchin.meshes.Mesh()
-
-        mesh.set_scale([1,1,1])
-
-        call = mock_emit.call_args
-
-        msg = call.args[0]
-        data = call.args[1]
-        print(data)
-
-        try:
-            jsonschema.validate(data, schema)
-        except jsonschema.exceptions.ValidationError as e:
-            pytest.fail()
\ No newline at end of file
diff --git a/UnityClient/Packages/vbl.urchin/Scripts/Behaviors/MeshBehavior.cs b/UnityClient/Packages/vbl.urchin/Scripts/Behaviors/MeshBehavior.cs
index 9a81a00b..c0f7d5c5 100644
--- a/UnityClient/Packages/vbl.urchin/Scripts/Behaviors/MeshBehavior.cs
+++ b/UnityClient/Packages/vbl.urchin/Scripts/Behaviors/MeshBehavior.cs
@@ -61,7 +61,8 @@ public void SetPosition(Vector3 coordAtlasU)
 
     private void _SetPosition()
     {
-        transform.localPosition = BrainAtlasManager.ActiveReferenceAtlas.Atlas2World(Data.position);
+        // Set position expects coordinates in raw AP/ML/DV coordinates, not reference
+        transform.localPosition = BrainAtlasManager.ActiveReferenceAtlas.Atlas2World(Data.position, false);
     }
 
     public void SetScale(Vector3 scale)
diff --git a/UnityClient/Packages/vbl.urchin/Scripts/Managers/AtlasManager.cs b/UnityClient/Packages/vbl.urchin/Scripts/Managers/AtlasManager.cs
index faf2142a..82bda45d 100644
--- a/UnityClient/Packages/vbl.urchin/Scripts/Managers/AtlasManager.cs
+++ b/UnityClient/Packages/vbl.urchin/Scripts/Managers/AtlasManager.cs
@@ -95,6 +95,9 @@ public async void LoadAtlas(string atlasName)
             await atlasTask;
 
             BrainAtlasManager.SetReferenceCoord(Utils.Utils.BregmaDefaults[BrainAtlasManager.ActiveReferenceAtlas.Name]);
+#if UNITY_EDITOR
+            Debug.Log($"Reference coordinate set to {Utils.Utils.BregmaDefaults[BrainAtlasManager.ActiveReferenceAtlas.Name]}");
+#endif
         }
 
         //public void CustomAtlas(CustomAtlasData data)