diff --git a/package.json b/package.json
index fc6f9cb..2c4e5ab 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
   "homepage": "https://github.com/zakodium/nmrium-cli#readme",
   "devDependencies": {
     "@types/jest": "^29.5.12",
+    "@types/node": "^20.12.7",
     "eslint": "^8.56.0",
     "eslint-config-cheminfo": "^9.1.1",
     "esm": "^3.2.25",
diff --git a/src/__tests__/createGeneralTOC.test.js b/src/__tests__/createGeneralTOC.test.js
index 9901aa7..8073366 100644
--- a/src/__tests__/createGeneralTOC.test.js
+++ b/src/__tests__/createGeneralTOC.test.js
@@ -1,4 +1,4 @@
-import { statSync } from 'fs';
+import { readFileSync, statSync } from 'fs';
 import { join } from 'path';
 
 import readdir from 'recursive-readdir';
@@ -11,11 +11,17 @@ const dataDir = join(__dirname, 'general');
 test('createGeneralTOC', async () => {
   await createGeneralTOC(__dirname, { dataDir });
 
-  const files = (await readdir(dataDir)).sort();
-  const sizes = files
+  const files = (await readdir(dataDir)).sort()
     .filter((file) => file.match(/\.json$/))
+
+  const sizes = files
     .map((file) => {
       return statSync(file).size;
     });
-  expect(sizes).toStrictEqual([1656, 707, 1002, 483, 250]);
+  expect(sizes).toStrictEqual([1656,
+    832,
+    1127,
+    96,
+    487,
+    250,]);
 });
diff --git a/src/__tests__/general/Group1/Data1/index.json b/src/__tests__/general/Group1/Data1/index.json
index 4d9cb8c..9341585 100644
--- a/src/__tests__/general/Group1/Data1/index.json
+++ b/src/__tests__/general/Group1/Data1/index.json
@@ -28,5 +28,13 @@
       ]
     }
   },
-  "version": 6
+  "version": 6,
+  "settings": {
+    "display": {
+      "general": {
+        "hideGeneralSettings": true
+      }
+    },
+    "version": 2
+  }
 }
\ No newline at end of file
diff --git a/src/__tests__/general/Group1/Data2/index.json b/src/__tests__/general/Group1/Data2/index.json
index 844c38e..f683676 100644
--- a/src/__tests__/general/Group1/Data2/index.json
+++ b/src/__tests__/general/Group1/Data2/index.json
@@ -44,5 +44,13 @@
       ]
     }
   },
-  "version": 6
+  "version": 6,
+  "settings": {
+    "display": {
+      "general": {
+        "hideGeneralSettings": true
+      }
+    },
+    "version": 2
+  }
 }
\ No newline at end of file
diff --git a/src/__tests__/general/Group1/index.yml b/src/__tests__/general/Group1/index.yml
new file mode 100644
index 0000000..74ff5da
--- /dev/null
+++ b/src/__tests__/general/Group1/index.yml
@@ -0,0 +1,3 @@
+menuLabel: Menu label
+default:
+  settingsFilename: settings.json
diff --git a/src/__tests__/general/Group1/settings.json b/src/__tests__/general/Group1/settings.json
new file mode 100644
index 0000000..f15155c
--- /dev/null
+++ b/src/__tests__/general/Group1/settings.json
@@ -0,0 +1,8 @@
+{
+  "display": {
+    "general": {
+      "hideGeneralSettings": true
+    }
+  },
+  "version": 2
+}
diff --git a/src/__tests__/general/toc.json b/src/__tests__/general/toc.json
index 522e4ad..4ba0b97 100644
--- a/src/__tests__/general/toc.json
+++ b/src/__tests__/general/toc.json
@@ -6,7 +6,7 @@
     "selected": true
   },
   {
-    "groupName": "Group1",
+    "groupName": "Menu label",
     "folderName": "Group1",
     "children": [
       {
diff --git a/src/commands/toc/createToc.js b/src/commands/toc/createToc.js
index 90589e4..bb9ca50 100644
--- a/src/commands/toc/createToc.js
+++ b/src/commands/toc/createToc.js
@@ -18,7 +18,6 @@ const debug = debugFct('nmrium.toc');
  */
 export async function createToc(commandDir, folderProcessor, options = {}) {
   const { dataDir = commandDir } = options;
-
   debug(`Creating TOC of: ${dataDir}`);
 
   let toc = [];
@@ -46,6 +45,10 @@ async function processFolder(
       lstatSync(join(currentFolder, file)).isDirectory(),
   );
 
+  // top level configuration ?
+  const { defaultFolderConfig } = getFolderConfig(currentFolder);
+  options = { ...defaultFolderConfig, ...options };
+
   for (let subfolder of folders) {
     // is there any molfile ?
     let isDataFolder = readdirSync(join(currentFolder, subfolder)).some(
@@ -59,7 +62,9 @@ async function processFolder(
         recursive: true,
       }).some((file) => file.match(/(?:.mol|.dx|.jdx)$/i));
       if (containsData) {
-        const folderConfig = getFolderConfig(join(currentFolder, subfolder));
+        const { folderConfig, defaultFolderConfig } = getFolderConfig(
+          join(currentFolder, subfolder),
+        );
         const subTOC = {
           groupName:
             folderConfig.menuLabel || subfolder.replace(/^[0-9]*_/, ''),
@@ -72,7 +77,7 @@ async function processFolder(
           join(folder, subfolder),
           subTOC.children,
           folderProcessor,
-          { ...options },
+          { ...defaultFolderConfig, ...options },
         );
       }
     }
diff --git a/src/commands/toc/getFolderConfig.js b/src/commands/toc/getFolderConfig.js
index a237b23..8250bda 100644
--- a/src/commands/toc/getFolderConfig.js
+++ b/src/commands/toc/getFolderConfig.js
@@ -8,13 +8,26 @@ export function getFolderConfig(folder) {
   const folderConfig = existsSync(folderConfigFilename)
     ? YAML.parse(readFileSync(folderConfigFilename, 'utf8'))
     : {};
-  if (folderConfig.settingsFilename) {
-    const settingsFilename = join(folder, folderConfig.settingsFilename);
+
+  const defaultFolderConfig = folderConfig.default || {};
+  delete folderConfig.default;
+
+  loadSettings(folderConfig, folder);
+  loadSettings(defaultFolderConfig, folder);
+
+
+  return {
+    folderConfig: { ...defaultFolderConfig, ...folderConfig }, defaultFolderConfig
+  };
+}
+
+function loadSettings(config, folder) {
+  if (config.settingsFilename) {
+    const settingsFilename = join(folder, config.settingsFilename);
     if (existsSync(settingsFilename)) {
-      folderConfig.settings = JSON.parse(
+      config.settings = JSON.parse(
         readFileSync(settingsFilename, 'utf8'),
       );
     }
   }
-  return folderConfig;
-}
+}
\ No newline at end of file
diff --git a/src/commands/toc/processGeneralFolder.js b/src/commands/toc/processGeneralFolder.js
index b62ac94..1e5c6a4 100644
--- a/src/commands/toc/processGeneralFolder.js
+++ b/src/commands/toc/processGeneralFolder.js
@@ -15,7 +15,10 @@ let dataCount = 0;
 
 export async function processGeneralFolder(basename, folder, toc, options) {
   const currentFolder = join(basename, folder);
-  options = { ...options, ...getFolderConfig(currentFolder) };
+
+  const { folderConfig, defaultFolderConfig } = getFolderConfig(currentFolder);
+
+  options = { ...options, ...defaultFolderConfig, ...folderConfig };
 
   const { id, nmrium } = await loadData(currentFolder, options);