How to enable Custom Fields in new version of WordPress?
WordPress has released its new version in December 2018. WordPress has updated “Screen Options” in their new version. “Screen Options” is the panel that appeared on “add/edit” pages and posts to give some extra options. This panel had of option for “Custom Fields”.
Now “Screen Options” panel has been changed in new version and “Custom Fields”, “Featured Image”, “Discussion”, “Excerpt” etc., options has been moved to new panel. New options can be found by clicking on top right 3 dots. There will be a panel opened, which have “Options” tab at end (refer following images). By clicking on “Options” tab another panel will open, which have Custom Fields”, “Featured Image”, “Discussion”, “Excerpt” options. From there you can enable/disable these options.
Hope this will help…