How to add Custom Sidebar Links in Wordpress

Customize the sidebar of any page on your site by creating a list of links to other pages, posts, or custom post types.

Noted That:

To install correctly this custom-sidebar-links.zip.
Fisrt Download the custom-sidebar-links.zip to your computer
Extract/Open custom-sidebar-links.zip to Your Computer.
Then, Find readme.txt file inside custom-sidebar-links.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 Tips Below.

Start the Tips:

1. First Download "custom-sidebar-links.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 "custom-sidebar-links.zip" Downloaded plugin from your computer, Where you downloaded custom-sidebar-links.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Custom Sidebar Links" folder is added on left sidemenu. Now, Click on "Custom Sidebar Links" folder.

Noted that: If you do not see "Custom Sidebar Links" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Custom Sidebar Links Configurtions and Settings or How to work "Custom Sidebar Links" 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 "Custom Sidebar Links" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Custom Sidebar Links
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide

Guide
Upload the plugin files to the /wp-content/plugins/custom-sidebar-links directory, or install the Custom Sidebar Links plugin through the WordPress plugins screen directly. Activate the Custom Sidebar Links through the ‘Plugins’ screen in WordPress. Go to Appearance->Widgets. Drag the Custom Sidebar Links widget to your active sidebar. Note: You can also use the shortcode [vimo_csbl] on the content area of any page if you wish to display it elsewhere other than the sidebar. If you need to use it in the template files, simply use the do_shortcode() function. Like this: echo do_shortcode( ‘[vimo_csbl]’ ); It’s recomended to enable “default child pages” to automatically populate links for pages that have a parent/child relation. Go to `Pages` and click to edit a page you wish to customize and select a menu or check the boxes of all pages/posts/custom post types you would like.

Upload the plugin files to the /wp-content/plugins/custom-sidebar-links directory, or install the Custom Sidebar Links plugin through the WordPress plugins screen directly.
Activate the Custom Sidebar Links through the ‘Plugins’ screen in WordPress.
Go to Appearance->Widgets. Drag the Custom Sidebar Links widget to your active sidebar.
Note: You can also use the shortcode [vimo_csbl] on the content area of any page if you wish to display it elsewhere other than the sidebar. If you need to use it in the template files, simply use the do_shortcode() function. Like this: echo do_shortcode( ‘[vimo_csbl]’ );
It’s recomended to enable “default child pages” to automatically populate links for pages that have a parent/child relation.
Go to Pages and click to edit a page you wish to customize and select a menu or check the boxes of all pages/posts/custom post types you would like.

Reffered: https://wordpress.org/