Thank you for your kind words!
Well, that option will not help, as it will only work with custom post type meta. However this should be possible with a custom code for sure.
Add this custom code to the functions.php in your theme/child theme directory (copy from line 3 only!). Before editing, please make sure to have a full site back-up just in case!
This may do the trick.Best,
If you like my products, don't forget to rate them on codecanyon :)