Need to limit the previous/next post links to current author editing post

I installed a plugin to be able to display a previous post / next post option in the backend, in the post edit screen. However the code does this for all posts and we really would like to build in a restriction.

I would like to restrict the links to point only to the posts made by the logged in (current) user editing his/her own post at that moment.

The code I would like to alter is this (I already added a current user variable, in case I’d need it)

add_action('admin_print_footer_scripts','amm_edit_next_prev_post_button'); function amm_edit_next_prev_post_button(){     $  screen = get_current_screen();     //echo "<pre>";     //print_r($  screen);     $  supported_types = array('page', 'post');     if( strpos($  screen->parent_file, 'edit.php') !== FALSE && in_array($  screen->id, $  supported_types) && in_array($  screen->post_type, $  supported_types) && $  screen->action != 'add'){         //Prev-Next are arranged acc. to post table so switched next to prev and prev to next         $  next_post = get_previous_post();         $  previous_post = get_next_post();         $  current_user = wp_get_current_user();         ?>             <!--<style>body{background-color:red !important}</style>-->             <script>                 if(window.jQuery) {                     jQuery(document).ready(function($  ) {                         $  (window).load(function() {                              var is_next_post_available = '<?php echo ($  next_post->ID) ? true : false ?>';                             var is_prev_post_available = '<?php echo ($  previous_post->ID) ? true : false ?>'; 

I did some researching and fond this but would be hesitant if I can combine these two ? Modify previous and next post links to current Authors Other posts