To create option tree list item metabox
array( 'label' => 'Team Social', 'id' => 'team_links', 'type' => 'list-item', 'section' => 'social_icons_setting', 'settings' => array( array( 'id' => 'social_icon_name', 'label' => 'Social Icon Name', 'type' => 'text' ), array( 'id' => 'social_link_url', 'label' => 'Social Network link', 'type' => 'text' ) ) )
Usages
<?php $team_links= get_post_meta($post->ID, 'team_links', true); ?> <?php foreach( $team_links as $team_link ) { echo '<a tearget="_blank" href="'.$team_link['social_link_url'].'"><i class="fa fa-'.$team_link['social_icon_name'].'"></i></a>'; } ?>