Topic Tag: Setting up custom fields

Problem:
How to change the order of custom field meta boxes on the post edit screen, and, also, how to change the "Enter title here" placeholder text for a custom post type.

Solution:
You can re-order custom field meta boxes on the post edit screen simply by dragging and dropping them while editing one post, and the changes will be applied to all posts of that type.

You can also modify the "Enter title here" placeholder text using the built-in 'enter_title_here' WordPress filter.

Relevant Documentation:
https://developer.wordpress.org/reference/hooks/enter_title_here/