Do we want to try to finish the custom meta box for this, or is the standard "Custom Fields" editor enough for admin users? The Custom Fields editor doesn't load all registered custom fields, and so does not provide an easy way for editors to know or set these fields if they are not already set on the post
This meta box ticket covers:
[ ] Create a metabox with fields for all custom post meta registered by this plugin
This ticket captures the yet-to-be-completed editor-side interfaces described in https://github.com/INN/umbrella-currentorg/pull/131:
This meta box ticket covers: