Suggestion

Hi its very useful plugin. I suggest to add possibility to delete unneeded post meta especially those who are hidden for example _name_of_meta.
You can add first column checkbox and after table to add a button “Delete checked meta”. Will be great to clean post meta, because if they hidden we cant delete them with default WordPress functionality.

And second suggestion you could add another Metabox after “Post Metadata” witch is “Taxonomy Metadata” and to display all taxonomies of post, will be more deeper way to see and debug all taxonomies (may be by ID) of the post.

Thanks and have a nice day. 🙂