Not an issue, but idea on using this field

[lifeflowdan]

Great idea for a field! I am going to try and use this to allow authors to assign co-authors to a post upon submission (or editing) of that post. I know you can do that through a few different hooks. If you have any thoughts on how to achieve this, I'm all ears.

[MaximeCulea]

Hi @lifeflowdan, thank you for contacting us.

If you are not using any writing workflow plugin, you could just add this field to your content, as required, then display it as the reviewer/co-author.

In other hand, to make a real writing workflow, I suggest you using https://fr.wordpress.org/plugins/edit-flow.

Hope this help you.