The navigation menu uses a nested syntax to define the pages. Groups contain pages and nested groups. 
"navigation": [
  {
    "group": "Get Started",
    "pages": ["introduction"]
  },
  {
    "group": "Essentials",
    "pages": [
      "essentials/markdown",
      "essentials/navigation"
    ]
  }
]

​
Folders

Simply put your MDX files in folders and update the paths in mint.json. For example, to add a file at essentials/navigation.mdx add essentials/navigation to your navigation. 
"navigation": [
  {
    "group": "Essentials",
    "pages": ["essentials/navigation"]
  }
]

​
Hidden Pages

MDX files not included in mint.json will not show up in the sidebar but are accessible through the search bar and by directly visiting the URL.

​
Tabs

Tabs help organize navigation for very large docs. Set the tabs field in mint.json. 
"tabs": [
  {
    "name": "API Reference",
    "url": "api-reference"
  }
]

​
Anchors

Anchors provide a way to link to external resources from the sidebar. 
"anchors": [
  {
    "name": "Blog",
    "icon": "newspaper",
    "url": "https://sellufy.com/blog"
  }
]