Add custom fields support for comments. Extension for Meta Box plugin.
MB Comment Meta is an extension for Meta Box plugin, which adds custom fields to comments in WordPress.
Meta Box Lite
We recommend using Meta Box Lite, a feature-rich free UI version of Meta Box that provides UI and all free features for managing custom fields and dynamic content on WordPress, including post types, taxonomies, custom fields, and relationships.
The plugin supports all field types from Meta Box: text, select, color, media, date time, etc. and all the field options.
You need to install Meta Box plugin first
Install MB Comment Meta extension
To use this plugin, just register a meta box and add the following parameter for meta box:
'type' => 'comment',