Select which plugins are activated on a page-by-page basis.

Noted That:

To install correctly this simple-plugin-selector.zip.
Fisrt Download the simple-plugin-selector.zip to your computer
Extract/Open simple-plugin-selector.zip to Your Computer.
Then, Find readme.txt file inside simple-plugin-selector.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 "simple-plugin-selector.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 "simple-plugin-selector.zip" Downloaded plugin from your computer, Where you downloaded simple-plugin-selector.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Simple Plugin Selector" folder is added on left sidemenu. Now, Click on "Simple Plugin Selector" folder.

Noted that: If you do not see "Simple Plugin Selector" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

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

Guide
Not for newbies! The webmaster must have a clear grasp of which plugins are required for which pages, otherwise some pages will have a bunch of errors because the relevant plugin is not loaded. Using FTP or your host’s file manager system, check for the sub-folder wp-content/mu-plugins and create this subfolder if it doesn’t exist. Upload the SPS folder, simple-plugin-selector.php file and readme.txt into this folder. If you can’t find wp-content, it may have been renamed. SPS is always-on, so there is no need to enable via admin and users cannot deactivate it by accident. Plugins in the must-use directory will not appear in the update notifications nor show their update status on the plugins page, so you are responsible for learning about and performing updates on your own. Settings Go to Dashboard > Settings > Simple Plugin Selector to set which plugins you would like to activate on a page by page basis. If a new page, post or product is created, all plugins will be activated for that by default until set by SPS settings. If a new plugin is activated, it will be loaded for all pages by default until set by SPS settings. There is a setting to deactivate SPS for debugging. To delete the plugin, remove its files using FTP.

Guide

Not for newbies! The webmaster must have a clear grasp of which plugins are required for which pages, otherwise some pages will have a bunch of errors because the relevant plugin is not loaded.

Using FTP or your host’s file manager system, check for the sub-folder wp-content/mu-plugins and create this subfolder if it doesn’t exist. Upload the SPS folder, simple-plugin-selector.php file and readme.txt into this folder. If you can’t find wp-content, it may have been renamed.

SPS is always-on, so there is no need to enable via admin and users cannot deactivate it by accident.

Plugins in the must-use directory will not appear in the update notifications nor show their update status on the plugins page, so you are responsible for learning about and performing updates on your own.

Settings

Go to Dashboard > Settings > Simple Plugin Selector to set which plugins you would like to activate on a page by page basis.

If a new page, post or product is created, all plugins will be activated for that by default until set by SPS settings.

If a new plugin is activated, it will be loaded for all pages by default until set by SPS settings.

There is a setting to deactivate SPS for debugging. To delete the plugin, remove its files using FTP.

page, basis, activated, plugins, which, select,

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Reffered: https://wordpress.org/