diff --git a/Editor/ClusterEditor.cs b/Editor/ClusterEditor.cs
index dc99668..e1b4a92 100644
--- a/Editor/ClusterEditor.cs
+++ b/Editor/ClusterEditor.cs
@@ -47,28 +47,30 @@ namespace NanoBrain.Unity {
             EditorGUI.BeginChangeCheck();
 
             // Begin horizontal split
-            EditorGUILayout.BeginHorizontal();
+            // EditorGUILayout.BeginHorizontal();
 
-            // Left: fixed-width drawing area
-            GUILayoutOption[] leftOptions = { GUILayout.Width(drawAreaWidth) };
-            Rect drawRect = GUILayoutUtility.GetRect(drawAreaWidth, 450f, leftOptions); // height adjustable
+            // // Left: fixed-width drawing area
+            // GUILayoutOption[] leftOptions = { GUILayout.Width(drawAreaWidth) };
+            // Rect drawRect = GUILayoutUtility.GetRect(drawAreaWidth, 450f, leftOptions); // height adjustable
 
-            // add padding inside rect
-            Rect innerRect = new(drawRect.x + padding, drawRect.y + padding,
-                                      drawRect.width - padding * 2, drawRect.height - padding * 2);
+            // // add padding inside rect
+            // Rect innerRect = new(drawRect.x + padding, drawRect.y + padding,
+            //                           drawRect.width - padding * 2, drawRect.height - padding * 2);
 
-            view.Render(innerRect);
+            // view.Render(innerRect);
 
             // Right: info panel (takes remaining width)
             EditorGUILayout.BeginVertical(GUILayout.ExpandWidth(true));
             float prevLabelWidth = EditorGUIUtility.labelWidth;
             EditorGUIUtility.labelWidth = 100f; // smaller labels -> larger fields
 
+            if (GUILayout.Button("Import"))
+                ImportJson();
             InspectorHandler(serializedObject);
 
             EditorGUIUtility.labelWidth = prevLabelWidth;
             EditorGUILayout.EndVertical(); // end right column
-            EditorGUILayout.EndHorizontal(); // end split
+            // EditorGUILayout.EndHorizontal(); // end split
 
             if (EditorGUI.EndChangeCheck()) {
                 serializedObject.Update();
@@ -82,6 +84,35 @@ namespace NanoBrain.Unity {
 
         }
 
+        protected void ImportJson() {
+            string path = EditorUtility.OpenFilePanel(
+                "Import JSON",
+                "",
+                "json"
+            );
+
+            if (!string.IsNullOrEmpty(path) && System.IO.File.Exists(path)) {
+                ClusterData newClusterData = Cluster.Import(path);
+                clusterPrefab.cluster = new(newClusterData) {
+                    name = clusterPrefab.name
+                };
+                clusterPrefab.cluster.Cleanup();
+
+                view.currentCluster = clusterPrefab.cluster;
+                view.currentNucleus = clusterPrefab.cluster.defaultOutput;
+                view.selectedOutput = view.currentNucleus;
+
+            }
+        }
+
+        public override bool HasPreviewGUI() => true;
+
+        public override void OnPreviewGUI(Rect r, GUIStyle background) {
+            base.OnPreviewGUI(r, background);
+            GUI.Label(r, "welcome");
+            view.Render(r);
+        }
+
         #region Inspector
 
         private bool showSynapses = true;