Academic theme: How to set weight of parent menu?

I use hugo theme academic.
I create some content which type is docs.
There is a sidebar in left of page.
I want to sort these docs pages so I set weight.
But they are not sorted.

The patials/docs_sidebar.html is :

{{ $current_page := . }}
{{ $menu_name := (path.Base (path.Split .Path).Dir) }}
{{ with (index .Site.Menus $menu_name) }}
{{ else }}
{{ errorf "Please define menu items named `[menu.%s]` in your %s front matter or define `[[menu.%s]]` in `config.toml`." $menu_name .Path $menu_name }}
{{ end }}
{{(path.Base (path.Split .Path).Dir)}}
{{index (index $.Site.Menus $menu_name) 2}}

<form class="docs-search d-flex align-items-center">
  <button class="btn docs-toggle d-md-none p-0 mr-3" type="button" data-toggle="collapse" data-target="#docs-nav" aria-controls="docs-nav" aria-expanded="false" aria-label="Toggle section navigation">
    <span><i class="fas fa-bars"></i></span>
  </button>

  {{ if eq $.Site.Params.search.engine 1 }}
  <input name="q" type="search" class="form-control" id="search-query" placeholder="{{ i18n "search_placeholder" }}" autocomplete="off">
  {{ end }}
</form>

<nav class="collapse docs-links" id="docs-nav">
  {{ with (index .Site.Menus $menu_name) }}
  {{ range (index $.Site.Menus $menu_name).ByWeight }}
  <div class="docs-toc-item{{ if $current_page.IsMenuCurrent $menu_name . }} active{{ end }}">
    <a class="docs-toc-link" {{ if .URL }}href="{{ .URL }}"{{else if .HasChildren }}href="{{ (index .Children 0).URL }}"{{end}}>{{ .Name }}{{.Parent}}</a>

    {{- if .HasChildren }}
    <ul class="nav docs-sidenav">
      {{ range .Children }}
      <li {{ if $current_page.IsMenuCurrent $menu_name . }}class="active"{{ end }}>
        <a href="{{ .URL }}">{{ .Parent }}</a>
      </li>
      {{ end }}
    </ul>
    {{ end }}

  </div>
  {{ end }}
  {{ end }}
</nav>

I want to sort like this:

├── Overview
├── Parent2
│ ├── Children3
│ └── Children4
└── Parent1
├── Children1
└── Children2

But actually like this:

├── Overview
├── Parent1
│ ├── Children1
│ └── Children2
└── Parent2
├── Children1
└── Children2

I set weight like this:

tutorial/_index.md

[menu.tuts2]
  name = "Overview"
  weight = 1

tutorial/children1.md

linktitle = "Children1"
[menu.tuts2]
  parent = "Parent1"
  weight = 4

tutorial/chindren2。.md

linktitle = "Children2"
[menu.tuts2]
  parent = "Parent1"
  weight = 5

tutorial/children3.md

linktitle = "Children3"
[menu.tuts2]
  parent = "Parent2"
  weight = 2

tutorial/children4.md

linktitle = "Children4"
[menu.tuts2]
  parent = "Parent2"
  weight = 3

It is becouse .Site.Menu.tutorial.Parent1.Weight = .Site.Menu.tutorial.Parent2.Weight = 0

Could anyone tell me how to set weight of parent menu?

I would like to do the same but I can’t find a way to do this.

Can you try publishing a repo so that I can test locally? One suggestion may be to set the parent menu items weight in the _index.md content files of those sections, or in your site/theme config file: