It seems to have been done a very good job. So far in all the tests I have done it works very well.
Just one observation. On mobile the tinyMCE edit form does not adapt automatically, so I added this code:
mobile: {menubar: true,
toolbar_mode: true
},in functions.php under this code:
<?php echo osc_run_hook('tinymce_item_script_top'); ?>
selector: 'textarea[name^="description["]',
and it works very well.
I did the same below:
<?php echo osc_run_hook('tinymce_user_script_top'); ?>
selector: "textarea[name^='s_info[']",
mode : "textareas",