MT | TEC | Adds the "WP Admin > Events: Upcoming" page, which only shows upcoming events

functions.php

<?php

// Adds upcoming menu item to WP Admin Menu
function tribe_custom_admin_menu () {
        add_submenu_page(
                '/edit.php?post_type='.TribeEvents::POSTTYPE,
                'Events: Upcoming',
                'Events: Upcoming',
                apply_filters( 'tribe_settings_req_cap', 'manage_options' ),
                'edit.php?post_type='.TribeEvents::POSTTYPE.'&orderby=start-date&order=asc&upcoming-events=true'
        );
}
add_action( 'admin_menu', 'tribe_custom_admin_menu', 1 );

// Adds Upcoming Events Page
function tribe_custom_events_search_orderby ( $orderby_sql ) {
        global $ecp_apm;
 
        if (!empty($_GET['upcoming-events']) && get_query_var('post_type') == TribeEvents::POSTTYPE) {
                $ecp_apm->filters->add_active(
                        array('ecp_end_date' =>
                                array(
                                        'value' => date('Y-m-d'),
                                        'is' =>  'gte',
                                        'is_date_field' => true
                                )
                        )
                );
        }
 
        return $orderby_sql;
}
add_filter('posts_orderby', 'tribe_custom_events_search_orderby', 1);