Allows the user to insert a index of posts and categories on page/post.

Noted That:

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

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Post Category Index Generator" folder is added on left sidemenu. Now, Click on "Post Category Index Generator" folder.

Noted that: If you do not see "Post Category Index Generator" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

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

Guide
Install the plugin either by uploading the contents of post-category-index-generator.zip to the ‘/wp-content/plugins/’ directory or by using the ‘Add New’ in ‘Plugins’ menu in WordPress Activate the plugin through the ‘Plugins’ menu in WordPress Parameters category – slug ot the category to parse. (mandatory) display – type of index to generate wich can be: list or tree. show – elements that will be displayed. Parameters are: category_name and post_title. links – elements that will contain a hyperlink to the element instead of normal text. Parameters are: category_name, subcategory_name and post_title. hide_empty – hides/displays empty categories. Parameters are: true or false. (default: false) order – set the order of the posts. Parameters are: asc (ascending) and desc (descending). orderby – set the wich parameter will be used when in the posts order. Parameters are: author, date, category, title, modified, menu_order, parent, ID and rand. hide_categories – list of categories (and its posts) that will not be displayed. In tree display this will include also the subcategories. hide_category_posts – list of categories wich the its posts that will not be displayed. tags_or and tags_and – list of tags wich will be used to filter. When both parameters are set, only the tags_and will be used. post_sections – parts of the post that will be displayed. Parameters are: excerpt, a html tag or a css html selectors separated with commas. For more info the html tags and css html selectors check the examples and and the section How to find HTML elements? in http://simplehtmldom.sourceforge.net/manual.htm. postappend and postappend_link – appends part of the post to the post title and uses same options of the the post_sections parameter. postappend will produce normal text while postappend_link will produce a link. postappend_prefix and postappend_separator – prefix and separator to be used then the parameters postappend or postappend_link are used. Options are comma, space and dash. ATENTION: IF THE CATEGORY DOESN’T HAVE ANY SUBCATEGORIES YOU HAVE TO USE THE ‘show’ PARAMETER DO DIPLAY POSTS TITLES AND SUBCATEGORIES NAMES. Examples for the parameters Displays only subcategories (ignores the empty ones) in tree index. [pcig category=category-2 hide_empty=true] Displays main category name, subcategories names (ignores the empty ones), post titles with hyperlinks in tree index. [pcig category=category-2 show=category_name,post_title links=post_title hide_empty=true] Displays subcategories names, subcategories names with hyperlinks and post titles with hyperlinks ordered by post title (in ascending order) in tree index. [pcig category=category-2 show=post_title links=subcategory_name,post_title order=asc orderby=title] Displays main category name, subcategories names (ignores the empty ones), post titles with hyperlinks in list index. [pcig category=category-2 display=list show=category_name,post_title links=post_title hide_empty=true] Displays main category name, subcategories names, ignores the content of 2 categories and ignore posts from other 2 categories. [pcig category=category-2 show=category_name,post_title hide_categories=category3,category-4 hide_category_posts=category5,category-6] Displays main category name, subcategories names and post_title of post that have both tags. [pcig category=category-2 show=category_name,post_title tags_and=tag1,tag2] Displays subcategories names, post titles with hyperlinks and the posts excerpts, heading 1 and heading 2 titles in tree index. [pcig category=category-2 show=post_title links=post_title post_sections=h1,h2,post_excerpt] Displays subcategories names, post titles with hyperlinks and the content of every html element in the post with the id equal to id123 (parameter that always starts with a number sign (#) ) and class equal class123 (parameter that always starts with a dot (.) ). [pcig category=category-2 show=post_title links=post_title post_sections=#id123,.class123] Displays subcategories names, post_excerpt and h1 elements appended to the post titles, using a dash as separator between elements and dash between the title and the elements. [pcig category=category-2 show=post_title postappend_prefix=dash postappend_separator=dash postappend=post_excerpt,h1] Classes The code generated by this plugin will contain some html classes will allow to style the index by add css rules to the theme’s css file. The following classes can be used: pcig-ul-list and pcig-top-ul-list – list class pcig-li-item – list element class pcig-category – category span element pcig-category-link – hyperlink class pcig-post-title pcig-post-excerpt pcig-post-title-link – post span class Examples of css Change the left margin of the index of the index: .pcig-top-ul-list{ margin-left: 5px; } Use image bullets for categories: .pcig-ul-list{ list-style-type:none; } .pcig-category{ padding-left: 20px; background:transparent url(redcheck.gif) no-repeat scroll 0 0;}

Guide

Install the plugin either by uploading the contents of
post-category-index-generator.zip to the ‘/wp-content/plugins/’ directory
or by using the ‘Add New’ in ‘Plugins’ menu in WordPress
Activate the plugin through the ‘Plugins’ menu in WordPress

Parameters

category – slug ot the category to parse. (mandatory)
display – type of index to generate wich can be: list or tree.
show – elements that will be displayed. Parameters are: category_name and post_title.
links – elements that will contain a hyperlink to the element instead of normal text. Parameters are: category_name, subcategory_name and post_title.
hide_empty – hides/displays empty categories. Parameters are: true or false. (default: false)
order – set the order of the posts. Parameters are: asc (ascending) and desc (descending).
orderby – set the wich parameter will be used when in the posts order. Parameters are: author, date, category, title, modified, menu_order, parent, ID and rand.
hide_categories – list of categories (and its posts) that will not be displayed. In tree display this will include also the subcategories.
hide_category_posts – list of categories wich the its posts that will not be displayed.
tags_or and tags_and – list of tags wich will be used to filter. When both parameters are set, only the tags_and will be used.
post_sections – parts of the post that will be displayed. Parameters are: excerpt, a html tag or a css html selectors separated with commas. For more info the html tags and css html selectors check the examples and and the section How to find HTML elements? in http://simplehtmldom.sourceforge.net/manual.htm.
postappend and postappend_link – appends part of the post to the post title and uses same options of the the post_sections parameter. postappend will produce normal text while postappend_link will produce a link.
postappend_prefix and postappend_separator – prefix and separator to be used then the parameters postappend or postappend_link are used. Options are comma, space and dash.

ATENTION: IF THE CATEGORY DOESN’T HAVE ANY SUBCATEGORIES YOU HAVE TO USE THE ‘show’ PARAMETER DO DIPLAY POSTS TITLES AND SUBCATEGORIES NAMES.

Examples for the parameters

Displays only subcategories (ignores the empty ones) in tree index.

[pcig category=category-2 hide_empty=true]

Displays main category name, subcategories names (ignores the empty ones), post titles with hyperlinks in tree index.

[pcig category=category-2 show=category_name,post_title links=post_title hide_empty=true]

Displays subcategories names, subcategories names with hyperlinks and post titles with hyperlinks ordered by post title (in ascending order) in tree index.

[pcig category=category-2 show=post_title links=subcategory_name,post_title order=asc orderby=title]

Displays main category name, subcategories names (ignores the empty ones), post titles with hyperlinks in list index.

[pcig category=category-2 display=list show=category_name,post_title links=post_title hide_empty=true]

Displays main category name, subcategories names, ignores the content of 2 categories and ignore posts from other 2 categories.

[pcig category=category-2 show=category_name,post_title hide_categories=category3,category-4 hide_category_posts=category5,category-6]

Displays main category name, subcategories names and post_title of post that have both tags.

[pcig category=category-2 show=category_name,post_title tags_and=tag1,tag2]

Displays subcategories names, post titles with hyperlinks and the posts excerpts, heading 1 and heading 2 titles in tree index.

[pcig category=category-2 show=post_title links=post_title post_sections=h1,h2,post_excerpt]

Displays subcategories names, post titles with hyperlinks and the content of every html element in the post with the id equal to id123 (parameter that always starts with a number sign (#) ) and class equal class123 (parameter that always starts with a dot (.) ).

[pcig category=category-2 show=post_title links=post_title post_sections=#id123,.class123]

Displays subcategories names, post_excerpt and h1 elements appended to the post titles, using a dash as separator between elements and dash between the title and the elements.

[pcig category=category-2 show=post_title postappend_prefix=dash postappend_separator=dash postappend=post_excerpt,h1]

Classes

The code generated by this plugin will contain some html classes will allow to style the index by add css rules to the theme’s css file. The following classes can be used:

pcig-ul-list and pcig-top-ul-list – list class
pcig-li-item – list element class
pcig-category – category span element
pcig-category-link – hyperlink class
pcig-post-title pcig-post-excerpt pcig-post-title-link – post span class

Examples of css

Change the left margin of the index of the index:
.pcig-top-ul-list{ margin-left: 5px; }

Use image bullets for categories:
.pcig-ul-list{ list-style-type:none; }
.pcig-category{ padding-left: 20px; background:transparent url(redcheck.gif) no-repeat scroll 0 0;}

categories, pagepost, posts, index, user, insert, allows,

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Reffered: https://wordpress.org/