Use navigation menus from another multisite blog on the same network to achieve a universal common navigation area.

Noted That:

To install correctly this multisite-shared-menu.zip.
Fisrt Download the multisite-shared-menu.zip to your computer
Extract/Open multisite-shared-menu.zip to Your Computer.
Then, Find readme.txt file inside multisite-shared-menu.zip and Open readme.txt.
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the the Tips Below.

Start the Tips:

1. First Download "multisite-shared-menu.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "multisite-shared-menu.zip" Downloaded plugin from your computer, Where you downloaded multisite-shared-menu.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Multisite Shared Menu" folder is added on left sidemenu. Now, Click on "Multisite Shared Menu" folder.

Noted that: If you do not see "Multisite Shared Menu" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Multisite Shared Menu Configurtions and Settings or How to work "Multisite Shared Menu" in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find "Multisite Shared Menu" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Multisite Shared Menu
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide
Copy the folder into your /wp-content/plugins directory. Activate for the sites you wish to use plugin on. NOTE: Should not be activated on master menu site, and all sites sharing menus should use the same theme. If your master/main site does not yet have a menu, set up a menu to use as a “master”. To use this menu on other sites, browse to the site you wish to use the menu on. Navigate to ‘Shared Menu Settings’ under the ‘Appearance’ menu. Select the source site that contains the menu you wish to use and select the menu location(s) to pull in from your primary site. Click ‘save changes’ to save your changes.

Guide

Copy the folder into your /wp-content/plugins directory.
Activate for the sites you wish to use plugin on. NOTE: Should not be activated on master menu site, and all sites sharing menus should use the same theme.
If your master/main site does not yet have a menu, set up a menu to use as a “master”.
To use this menu on other sites, browse to the site you wish to use the menu on.
Navigate to ‘Shared Menu Settings’ under the ‘Appearance’ menu.
Select the source site that contains the menu you wish to use and select the menu location(s) to pull in from your primary site.
Click ‘save changes’ to save your changes.

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Reffered: https://wordpress.org/