Keep Custom Field Changes in Revisions
Saves chosen custom fields, such as a subtitle, price or event date, with every revision so restoring an older version brings those values back too.
Snippet Library
Content snippets for WordPress
Snippets that add to or change your posts and pages: reading time, author boxes, “last updated” notes, content after the post or after a paragraph, and excerpt tweaks. For bloggers, publishers and anyone who wants richer posts without editing theme files.