Quick Page/Post Redirect Plugin - Adjust the priority (position) of redirect metabox.

functions.php

/*
 * Controls the position of the redirect meta box created by the Quick Page/Post Redirect Plugin
 * Plugin URL https://en-gb.wordpress.org/plugins/quick-pagepost-redirect-plugin/
 * 
 * Add to functions.php inside WP child theme
 */

function change_individual_redirect_metabox_priority($priority) {
    // Set the priority to 'high', 'core', 'default' or 'low' 
    return 'low';
}
add_filter('appip_metabox_priority_filter', 'change_individual_redirect_metabox_priority');