ACF Tab Merge

acf-tab-merge.php

<?php
/*
Plugin Name: ACF Tab Merge
Plugin URI: https://enshrined.co.uk/2017/06/14/merging-acf-field-group-tabs/
Description: Merges tabs across field groups in ACF
Version: 1.0.0
Author: enshrined
Author URI: https://enshrined.co.uk
*/

/**
 * Merge Advanced Custom Fields tab groups into a single group.
 */
function enshrined_merge_acf_tab_groups() {
	$screen = get_current_screen();
	if ( 'post' === $screen->base ) {
		echo '
		<!-- ACF Merge Tabs -->
		<script>		
			acf.add_action("ready", function( $el ){
				var tab_groups = jQuery("#postbox-container-2 .acf-postbox:not(.acf-hidden) > .acf-fields > .acf-tab-wrap > .acf-tab-group");
				var tab_wraps = jQuery("#postbox-container-2 .acf-postbox:not(.acf-hidden) > .acf-fields > .acf-tab-wrap").parent(".inside");
	
				// Merge the tabs
				if ( tab_groups.length > 1 ) {
				    var firstBox = tab_groups.first();
				    
				    tab_groups.not(firstBox).each(function(){
					    jQuery(this).find("li").appendTo(firstBox);
					    jQuery(this).parent(".acf-tab-wrap").remove();
				    });
				}
				
				// Merge the tab content
				if ( tab_wraps.length > 1 ) {
				    var firstBox = tab_wraps.first();
				    
				    tab_wraps.not(firstBox).each(function(){
					    jQuery(this).children().addClass("hidden-by-tab").appendTo(firstBox);
					    jQuery(this).parents(".acf-postbox").remove();
				    });
				}
			});
		</script>';
	}
}

add_action( 'admin_footer', 'enshrined_merge_acf_tab_groups' );

Updated jQuery selectors to not select sub-tabs as this breaks them. Only get first level tabs!

Hello @darylldoyle. I would love to use this in a website, but sadly it is not working anymore in the latest ACF versions.
Did you had the chance to make it work on the latest ACF?

Thank you very much for this plugin.
See you!