Yuriy Stepanov

The plugin adds 3 shortcodes: 
[wk_terms /] for displaying categories, tags, any other taxonomies, works through the WP_Term_Query class. 
[wk_posts /] for displaying posts, pages and any other post types, WK_posts receives data through the WP_Query class 
[wk_pages /] output of hierarchical structures of pages, posts and other types of posts, the data is obtained using the get_pages() function
Shortcodes pass all call parameters to the corresponding functions and receive the initial data set from them. 
Explore the basic parameters of calling source functions by following the links.
<a href="http://bugacms.com/wpEn/whale-kit" rel="nofollow ugc">Whale Kit</a> 
<a href="http://bugacms.com/wpEn/whale-kit-examples/" rel="nofollow ugc">Whale Kit – examples</a> 
<a href="http://bugacms.com/wpRu/whale-kit" rel="nofollow ugc">Whale Kit – по русски</a>

Whale-Kit

Three alternative to standard widget Categories, Recent Posts and Pages.

Javier Villanueva

Post Category Filter allows you to filter through your post categories and custom taxonomies by adding a search box on top of the term lists. The lists will update live as you type with only the relevant results based on your search query.
<h4>Want to contribute?</h4>
You can follow the <a href="https://github.com/jahvi/post-category-filter" rel="nofollow ugc">Github repository</a> and submit issues or pull requests.

Post Category Filter

Filter post categories and taxonomies live in the WordPress admin area

Whale-Kit vs Post Category Filter