WordPress at a glance
action is not described

manage_comments_nav action-hook . WP 2.5.0

Fires after the Filter submit button for comment types.

Usage

add_action( 'manage_comments_nav', 'action_function_name_34', 10, 2 );
function action_function_name_34( $comment_status, $which ){
	// action...
}
$comment_status(string)
The comment status name.
Default: 'All'
$which(string)
The location of the extra table nav markup: 'top' or 'bottom'.

Changelog

Since 2.5.0 Introduced.
Since 5.6.0 The $which parameter was added.

Where the hook is called

WP_Comments_List_Table::extra_tablenav()
manage_comments_nav
wp-admin/includes/class-wp-comments-list-table.php 431
do_action( 'manage_comments_nav', $comment_status, $which );

Where in WP core the hook is used WordPress

Usage not found.