Create a custom order for the Beaver Builder admin bar dropdown #beaverbuilder

bb-dropdown-custom-order.php

<?php

add_filter( 'fl_theme_builder_current_page_layouts', function( $layouts ) {
    // Custom order
    $custom_order = ['header', 'singular', 'archive', '404', 'part' , 'footer'];

    $sorted_layouts = [];
    // Populate sorted_layouts based on custom_order
    foreach ($custom_order as $type) {
        if (isset($layouts[$type])) {
            $sorted_layouts[$type] = $layouts[$type];
        }
    }

    // Add any layout types not added to your custom order that are in $layouts
    foreach ($layouts as $type => $layout_array) {
        if (!isset($sorted_layouts[$type])) {
            $sorted_layouts[$type] = $layout_array;
        }
    }

    return $sorted_layouts;
});