We'll create fresh WordPress site with JSM Show Comment Metadata installed. You have 20 minutes to test the plugin after that site we'll be deleted.
The JSM Show Comment Metadata plugin displays comment meta keys and their unserialized values in a metabox at the bottom of comment editing pages.
There are no plugin settings – simply install and activate the plugin.
Filter the comment meta shown in the metabox:
'jsmscm_metabox_table_metadata' ( array $metadata, $comment_obj )
Array of regular expressions to exclude meta keys:
'jsmscm_metabox_table_exclude_keys' ( array $exclude_keys, $comment_obj )
Capability required to show comment meta:
'jsmscm_show_metabox_capability' ( 'manage_options', $comment_obj )
Capability required to delete comment meta:
'jsmscm_delete_meta_capability' ( 'manage_options', $comment_obj )
Icon for the delete comment meta button:
'jsmscm_delete_meta_icon_class' ( 'dashicons dashicons-table-row-delete' )