diff --git a/.vscode/settings.json b/.vscode/settings.json
index 3d2cefc..a2d4104 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -5,5 +5,7 @@
         "schemas/api-config/collection.json": "demo-api/collections/*.y*ml",
         "schemas/api-config/field.json": "demo-api/collections/fields/*.y*ml"
     },
-    "editor.formatOnSave": true
-}
\ No newline at end of file
+    "editor.formatOnSave": true,
+    "editor.tabCompletion": "on",
+    "diffEditor.codeLens": true
+}
diff --git a/schemas/api-config/collection.json b/schemas/api-config/collection.json
index 35a94cf..be419c5 100644
--- a/schemas/api-config/collection.json
+++ b/schemas/api-config/collection.json
@@ -23,36 +23,44 @@
             "description": "relative to config.yml, path for file uploads"
         },
         "meta": {
-            "type": "object",
-            "description": "meta object used for admin ui configuration",
-            "additionalProperties": true,
-            "allOf": [{ "$ref": "collectionNavigation.json" }],
-            "properties": {
-                "rowIdentTpl": {
-                    "description": "template which evaluates to short string to identify entry in pe. select boxes",
-                    "$ref": "field.json#/definitions/evalExpressions"
-                },
-                "subNavigation": {
-                    "oneOf": [
-                        { "$comment": "for include tag", "type": "string" },
-                        {
-                            "type": "array",
-                            "description": "sub navigation of collection",
-                            "items": {
-                                "oneOf": [
-                                    {
-                                        "$comment": "for include tag",
-                                        "type": "string"
-                                    },
-                                    {
-                                        "$ref": "collectionNavigation.json"
+            "oneOf": [
+                { "$comment": "for include tag", "type": "string" },
+                {
+                    "type": "object",
+                    "description": "meta object used for admin ui configuration",
+                    "additionalProperties": true,
+                    "allOf": [{ "$ref": "collectionNavigation.json" }],
+                    "properties": {
+                        "rowIdentTpl": {
+                            "description": "template which evaluates to short string to identify entry in pe. select boxes",
+                            "$ref": "field.json#/definitions/evalExpressions"
+                        },
+                        "subNavigation": {
+                            "oneOf": [
+                                {
+                                    "$comment": "for include tag",
+                                    "type": "string"
+                                },
+                                {
+                                    "type": "array",
+                                    "description": "sub navigation of collection",
+                                    "items": {
+                                        "oneOf": [
+                                            {
+                                                "$comment": "for include tag",
+                                                "type": "string"
+                                            },
+                                            {
+                                                "$ref": "collectionNavigation.json"
+                                            }
+                                        ]
                                     }
-                                ]
-                            }
+                                }
+                            ]
                         }
-                    ]
+                    }
                 }
-            }
+            ]
         },
         "projections": {
             "oneOf": [