How can I enable the menubar to see file tree

[TenTh0usand]

I'm a noob who read all the files but cannot figure out how to fix it...
Sorry for disturbing.
Windows plat form. I use obsidian to manage my notes.

This is my config.yaml file:

baseURL: https://amethyst.bencuan.me

bookFlatSection: false

# Book configuration
disablePathToLower: true
enableGitInfo: false

# # Needed for mermaid/katex shortcodes
markup:
  goldmark:
    renderer:
      unsafe: true
  tableOfContents:
    startLevel: 1

# Multi-lingual mode config
# There are different options to translate files
# See https://gohugo.io/content-management/multilingual/#translation-by-filename
# And https://gohugo.io/content-management/multilingual/#translation-by-content-directory

# Sidebar menu additional links
menu:
  before:
    - name: "Sample"
      url: "https://google.com"
      weight: 10
  after:
    - name: "Github"
      url: "https://github.com/64bitpandas/amethyst"
      weight: 10

params:

  name: 10k
  title: 10k's Digital Garden

  # OPTIONAL: custom favicon location
  # favicon: 'location/to/favicon.png'

  # whether to display on-hover link preview cards
  enableLinkPreview: false

  # Enable rendering of LaTeX blocks
  # (surrounded by either single or double dollar signs)
  enableLatex: true

  # whether to render titles for code blocks
  enableCodeBlockTitle: true

  # whether to render copy buttons for code blocks
  enableCodeBlockCopy: true

  # whether to render callouts
  enableCallouts: true

  # Show footer, including backlinks and graph view
  enableFooter: true

  # whether backlinks of pages should show the context in which
  # they were mentioned
  enableContextualBacklinks: true

  # whether to show a section of recent notes on the home page
  enableRecentNotes: true
  
  # whether to display an 'edit' button next to the last edited field
  # that links to github
  enableGitHubEdit: false

  # whether to render mermaid diagrams
  enableMermaid: true

  # Link to your Github repo
  GitHubLink: https://tenthousand.cn
	# https://github.com/64bitpandas/amethyst

  # Search (WIP)
  search:
    enableSemanticSearch: true
    operandApiKey: "REPLACE-WITH-YOUR-OPERAND-API-KEY"
    operandIndexId: "REPLACE-WITH-YOUR-OPERAND-INDEX-ID"

  # Site description and title
  description:
    Notes, hosted by me

  
  # Footer links
  links:
    - link_name: Website
      link: https://bencuan.me
    - link_name: Blog
      link: https://blog.bencuan.me

  # (Optional, default true) Controls table of contents visibility on right side of pages.
  # Start and end levels can be controlled with markup.tableOfContents setting.
  # You can also specify this parameter per page in front matter.
  BookToC: true

  # (Optional, default none) Set the path to a logo for the book. If the logo is
  # /static/logo.png then the path would be logo.png
  BookLogo: /logo.png

  # (Optional, default none) Set leaf bundle to render as side menu
  # When not specified file structure and weights will be used
  BookMenuBundle: "/"

  # (Optional, default docs) Specify root page to render child pages as menu.
  # Page is resoled by .GetPage function: https://gohugo.io/functions/getpage/
  # For backward compatibility you can set '*' to render all sections to menu. Acts same as '/'
  BookSection: "/"

  # Set source repository location.
  # Used for 'Last Modified' and 'Edit this page' links.
  BookRepo: https://github.com/64bitpandas/amethyst

  # (Optional, default 'commit') Specifies commit portion of the link to the page's last modified
  # commit hash for 'doc' page type.
  # Requires 'BookRepo' param.
  # Value used to construct a URL consisting of BookRepo/BookCommitPath/<commit-hash>
  # Github uses 'commit', Bitbucket uses 'commits'
  BookCommitPath: commit

  # Enable "Edit this page" links for 'doc' page type.
  # Disabled by default. Uncomment to enable. Requires 'BookRepo' param.
  # Edit path must point to root directory of repo.
  BookEditPath: edit/main/exampleSite

  # Configure the date format used on the pages
  # - In git information
  # - In blog posts
  BookDateFormat: "January 2, 2006"


  # (Optional, default true) Enables comments template on pages
  # By default partals/docs/comments.html includes Disqus template
  # See https://gohugo.io/content-management/comments/#configure-disqus
  # Can be overwritten by same param in page frontmatter
  BookComments: true

  # /!\ This is an experimental feature, might be removed or changed at any time
  # (Optional, experimental, default false) Enables a drop-down menu for translations only if a translation is present.
  BookTranslatedOnly: false

  # Don't change this
  enableSPA: false
  BookSearch: false
  BookServiceWorker: false
  BookPortableLinks: false

added:
bookFlatSection: false

[64bitpandas]

Hi, apologies for the delayed response.

If you would like to set bookFlatSection: false, you should do this in the yaml frontmatter of the content (.md) itself, rather than the global config.

See this file for an example and this file for documentation on this behavior.

hope this helps!