hovoqoch

Flex Fields is a WordPress plugin that allows users to easily add custom meta boxes for post types, page templates, taxonomies, post statuses, and post taxonomies. These custom meta boxes can be utilized in code using the flex_field() function with the key parameter.

Flex Fields

Flex Fields is a WordPress plugin to add custom meta boxes for post types, pages, taxonomies, and more, using the flex_field() function.

netbiel

This plugin ads some extra options to your Customizer (like social icons), registers taxonomies and custom posts types for: 
– Portfolio items 
– Testimonials 
– FAQ 
– Team Members
This plugin doesn’t change how new post types are displayed in your theme. e.g You’ll need to add templates for archive-portfolio.php and single-portfolio.php if you want to customize the display of portfolio items. 
In the theme integrated with smartlib library you don’t need do anything

Smartlib Tools

Useful post types and customizer options.

Flex Fields vs Smartlib Tools